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PROFESSIONAL DEVELOPMENT FOR THE INTEGRATION OF
BIOTECHNOLOGY EDUCATION.
Stephen Thomas Garrett BSc (Hons), Grad Dip Ed.
Principal Supervisor: Dr Gillian Kidman
Associate Supervisor: Associate Professor Jim Watters
Thesis submitted in fulfilment of the requirements for the degree
Master of Education (Research)
Centre for Learning Innovation
Faculty of Education
Queensland University of Technology
2009
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Paragraph of Keywords
Science education, biotechnology, socio-scientific dimension, professional development, qualitative research, retrospective case study, one-on-one interviews, focus group discussions contemporary science, science curriculum, content knowledge, practical skills, pedagogical knowledge, curriculum management.
Abstract
Views on the nature and relevance of science education have changed
significantly over recent decades. This has serious implications for the way in which
science is taught in secondary schools, particularly with respect to teaching emerging
topics such as biotechnology, which have a socio-scientific dimension and also
require novel laboratory skills. It is apparent in current literature that there is a lack
of adequate teacher professional development opportunities in biotechnology
education and that a significant need exists for researchers to develop a carefully
crafted and well supported professional development design which will positively
impact on the way in which teachers engage with contemporary science.
This study used a retrospective case study methodology to document the
recent evolution of modern biotechnology education as part of the changing nature of
science education; examine the adoption and implementation processes for
biotechnology education by three secondary schools; and to propose an evidence
based biotechnology professional development model for science educators. Data
were gathered from documents, one-on-one interviews and focus group discussions.
Analysis of these data has led to the proposal of a biotechnology professional
development model which considers all of the key components of science
professional development that are outlined in the literature, as well as the additional
components which were articulated by the educators studied.
This research is timely and pertinent to the needs of contemporary science
education because of its recognition of the need for a professional development
model in biotechnology education that recognizes and addresses the content
knowledge, practical skills, pedagogical knowledge and curriculum management
components.
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Table of Contents
Paragraph of Keywords………………………………………………………….….i Abstract……………………………………………………………………………....i Table of Contents…………………………………………………………………...ii List of Tables……………………………………………………………….………..v List of Figures…………………………………………………………………….…v Statement of Authorship…………………………………………………………...vi Acknowledgements………………………………………………………………...vii CHAPTER 1
INTRODUCTION…………………………………………………………………
1 1.1
Background………………………………………………………………………………….….…...1
1.1.1 The Researcher……………………………………………….………………………........3
1.2
Context………………………………………………………………………………….………..….4 1.2.1 What is Modern
Biotechnology?.........................................................................................4 1.2.2 The Australian
Context……………………………………………………………..….…..5 1.2.3 The School Science Curriculum and
Biotechnology……………………………….….…..6 1.2.4 The Biotechnology
Curriculum……………………………………………………………8 1.2.5 Teachers and Biotechnology ............................................................................................. 10
1.3 Purposes .......................................................................................................................................... 13 1.4 Significance .................................................................................................................................... 14 1.5 Thesis Outline ................................................................................................................................. 14
CHAPTER 2 LITERATURE REVIEW .................................................................................... 16 2.1 Introduction .................................................................................................................................... 16 2.2 The Changing Nature of Science Education .................................................................................. 17 2.3 The Science Teacher as Learner .................................................................................................... 18 2.4 Professional Development ............................................................................................................. 20 2.5 The Impact of Teacher Concerns on Professional Development Programs ................................... 24
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2.6 Teacher Professional Development in Science .............................................................................. 27 2.7 Professional Development and Student Learning .......................................................................... 28 2.8 What Makes for Good Professional Development ......................................................................... 31 2.9 Biotechnology Professional Development ..................................................................................... 33 2.10 Summary and Theoretical Framework ......................................................................................... 34
CHAPTER 3 RESEARCH DESIGN ......................................................................................... 39 3.1 Introduction .................................................................................................................................... 39 3.2 Case Study Research Methodology ............................................................................................... 40 3.3 Methods .......................................................................................................................................... 43
3.3.1 Participants ....................................................................................................................... 44 3.3.2 Data Sources ..................................................................................................................... 45 3.3.3 Data Analysis .................................................................................................................... 49
3.4 Research Limitations ...................................................................................................................... 52 3.5 Ethics .............................................................................................................................................. 54 3.6 Summary ........................................................................................................................................ 54
CHAPTER 4 RESULTS ............................................................................................................. 55 4.1 Preamble ......................................................................................................................................... 55 4.2 Context ........................................................................................................................................... 56 4.3 Recent Evolution of Modern Biotechnology Education ................................................................ 58
4.3.1 Discussion of Impacting Events and Mechanisms ............................................................ 59 4.3.1.1 CSIRO Outreach Program ........................................................................... 59 4.3.1.2 Government Policy: The Smart State Vision ............................................... 61 4.3.1.3 Biotechnology Online .................................................................................. 62 4.3.1.4 Technology, Maths and Science Centres of Excellence (TMSCE) .............. 62 4.3.1.5 The Queensland Science Summit ................................................................. 63 4.3.1.6 BEU/ BEC .................................................................................................... 63 4.3.1.7 Spotlight On Science .................................................................................... 64 4.3.1.8 Current Biology Syllabus ............................................................................. 65 4.3.1.9 Australian Biotechnology Education Network (ABEN) .............................. 66 4.3.1.10 Queensland Biotechnology Education Network .......................................... 67 4.3.1.11 BioBus - The Travelling Biotechnology Exhibition .................................... 68 4.3.1.12 Australian School Innovation in Science, Technology and Mathematics .... 69 4.3.1.13 Biotech Babble ............................................................................................. 69 4.3.1.14 Science Education Strategy .......................................................................... 70
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4.3.2 Participating School Profiles ........................................................................................... 70 4.3.3 Summary of Impacting Events and
Initiatives………………………………..................74
4.4 The Process of Adoption and Implementation ............................................................................... 74 4.4.1 Factors Influencing the Adoption of the New Curriculum. ............................................. 75
4.4.1.1. Resources ........................................................................................................ 76 4.4.1.2. Knowledge/Skill Acquisition.......................................................................... 81 4.4.1.3. Syllabus .......................................................................................................... 85 4.4.1.4 The Human
Element………………………………….………..…….………..90
4.4.2 The Process of Implementation ........................................................................................ 90 4.4.3 Changes in Teacher Concerns. ......................................................................................... 92
4.5 Biotechnology Professional Development Key Components ........................................................ 94 4.6 Summary ........................................................................................................................................ 97
CHAPTER 5 ANALYSIS .................................................................................................... ……99 5.1 Evolution of Modern Biotechnology Education ............................................................................ 99
5.1.1 Biotechnology Education Events and Initiatives .............................................................. 99 5.1.1.1 Contribution to the Biotechnology Education Context .................................. 100 5.1.1.2 Direct Impact on the Uptake of Biotechnology Education ............................ 100 5.1.1.3 The Direction of Biotechnology Education ................................................... 100
5.2 Teacher Concerns......................................................................................................................... 101 5.3 A Proposed Model for Biotechnology Professional Development .............................................. 103
5.3.1 The Necessity for a Biotechnology Professional Development Model .......................... 103 5.3.2 Towards a Sustainable Biotechnology Curriculum ........................................................ 105 5.3.3 Key Components of a Biotechnology Professional Development
Model………….…...108
5.4 Conclusion ................................................................................................................................... 108
REFERENCES .................................................................................................................................. 111
APPENDICES ................................................................................................................................... 125
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LIST OF TABLES
Table 1.1 Essential Biotechnology Equipment and Consumable Items………………….…….........10
Table 3.1 Alignment of Data Sources, Data Collection Methods and Research
Questions…………………………………………………………………….…….….....51
Table 4.1 CSIRO
Workshops……………………..……………………………………………......61
Table 4.2 Summary of Impact of Events and Mechanisms on Subject Schools………………….....75
Table 4.3 Themes and Factors in the Biotechnology Stories of Educators…………………...…….77
Table 4.4 Biotechnology Equipment Possessed by Each School………………………..……..…...78
Table 4.5 Key Components and the Professional Development Programs……………….…….......96
Table 4.6 Additional Key Components Aligned with the Professional Development
Programs……………………………………………………………………….…….…98
Table 5.1 Summary of PD Key Components………………………………………..……….…....105
LIST OF FIGURES
Figure 5.1 A Timeline of Impacting Factors…………………...………………..……….…..…....100
Figure 5.2 Towards a Sustainable Biotechnology Curriculum…………………………….….…...107
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Statement of Authorship
The work contained in this thesis is original and has not been previously submitted for a degree or diploma at any other higher education institution. To the best of my knowledge and belief, the thesis contains no material previously published or written by another person except where due reference is made.
Signed:
Stephen Garrett
Date: March 12, 2009
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Acknowledgements
I sincerely thank my Principal Supervisor, Dr Gillian Kidman and Associate Supervisor, Associate Professor Jim Watters for their assistance and support throughout the process leading to the completion of this thesis. I am most appreciative of their time, guidance and the wisdom they shared with me. They have contributed significantly to ensuring that this learning experience was a most beneficial one for me. My sincere thanks also go to the educators with whom I worked throughout the data collection period. Their contributions through sharing their experiences were greatly appreciated. Thank you to my family for their love, patience and understanding throughout the process.
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Chapter 1 Introduction
This thesis provides a retrospective analysis of the professional development
(PD) in biotechnology education of a group of secondary science teachers and
scientific assistants, with particular reference to the classroom implementation of
biotechnology-specific laboratory learning experiences and acquisition of practical
skills. The thesis does not consider the PD associated with the teaching of
controversial issues and their socio-scientific implications.
Biotechnology is an emerging significant domain of knowledge in
contemporary science, and reform of biology education at school level is responding
to the challenge of building staff capacity. Hence, developing teachers’ conceptual
understanding and appropriate teaching skills is paramount to a successful
implementation of biotechnology as a component of contemporary curricula. This
chapter outlines the background (Section 1.1) to this study, describes the context
(Section 1.2) of the study, the purposes (Section 1.3), and the significance of this
research (Section 1.4). Finally, it includes an outline of the remaining chapters of the
thesis (Section 1.5).
1.1 BACKGROUND
Science is an important part of the school curriculum and is described by
curriculum developers as a forward looking, collaborative human endeavour which
embraces a process of inquiry involving questioning, predicting, hypothesising,
investigating, gathering and organising data, testing, refining, explaining and
communicating, in order to make sense of the world (Curriculum Corporation, 2006).
To be able to evaluate the significant impacts that arise from scientific endeavours,
citizens need to be scientifically literate. Scientific literacy is defined by the
Organisation for Economic Co-operation and Development (OECD) as the ability to
use scientific knowledge and processes not only to understand the natural world but
to participate in decisions that affect it (OECD, 2006).
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Views about the purpose of science education have changed significantly in
recent years, with one realisation being that an essential element of science education
is to help students to develop a deeper understanding of the world around them to
enable them to engage in relevant discourse about science in everyday life
(Goodrum, Hackling & Rennie, 2001). These changing perspectives have serious
implications for the way in which science is taught in secondary and tertiary
education. In particular with respect to teaching controversial socio-scientific issues,
that is, where there is an interplay between science and society which encompasses
social dilemmas with conceptual or technological links to science (Sadler, 2004),
which arise from areas of study such as biotechnology (Gray & Bryce, 2006).
In recent years, there has been a growth not only in biological knowledge, but
also, significantly for teacher education, in the types of knowledge manifested in
biology (Reiss, 2007). Biotechnology, which is a group of technologies based on the
application of living systems and/or biological processes to solve problems, is
emerging internationally as a scientific and commercial force that is having a
significant impact on humankind (Commonwealth Biotechnology Ministerial
Council, 2000; Moses, 2002; National Research Council Canada, 2005). Aspects of
biotechnology and some associated learning experiences are currently being
integrated and embedded in science syllabuses throughout the world. Embedding
biotechnology education creates a number of challenges, not least is that many
experienced science teachers are unfamiliar with the subject matter (Bryce & Gray,
2004). Compounding this problem is that the policy-practice interface is under-
researched (Jenkins, 2004).
As the uptake of biotechnology into the curriculum gathers momentum, a real
and significant need is arising for researchers to examine models of professional
development which will impact on the way in which teachers think about, and reflect
on science in the modern world (Gray & Bryce, 2006). As suggested by Eiser and
Knight (2006):
…there is a significant need for the development of suitable strategies for
ongoing teacher PD with an emphasis on the emerging knowledge areas in
science. (p. 92)
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It is apparent in current literature (Gray & Bryce, 2006; Hewson, 2007) that
there is a lack of adequate teacher professional development opportunities in
biotechnology education which consider the multi-dimensional aspect of professional
practice, strengthen teachers’ foundation in the knowledge, practical skills,
pedagogical and socio-scientific dimensions of biotechnology education and inspire
them as practitioners to deepen their commitment to contemporary science education
and debate. To date, teachers have relied in most part on professional development
sessions that have been regarded as ‘ad hoc’, ‘top-down’, ‘just-in-time’, ‘hit and
run’, ‘show and tell’, piecemeal (Senate Employment, Education and Training
References Committee, 1998), which, according to Adey, Hewitt, Hewitt and Landau
(2004) are universally condemned in the research literature as being ineffective ways
for teachers to learn. These are generally the types of professional development
sessions provided by tertiary institutions, government departments, industry outreach
programs and individuals from within the education community (Loucks-Horsley,
Love, Stiles, Mundry & Hewson, 2003). Whilst these professional development
attempts have been well-meaning and have simultaneously addressed several of the
key aspects of effective biotechnology professional development, anecdotal evidence
indicates (particularly with reference to practical skill development) that they have
lacked the ability to present a sustainable and totally relevant professional
development program that takes into account the syllabus, financial constraints in
schools, the needs of adult learners, and effective pedagogical practices to ensure
positive student learning outcomes. It is proposed that there is the necessity for a
more relevant and well researched approach.
1.1.1 The Researcher
The researcher of this study has significant grounding in biotechnology
content and laboratory techniques. Prior to becoming an educator, the researcher
worked in biotechnology research in both university and medical research
laboratories. As an educator, the researcher incorporated numerous biotechnology
learning experiences into his teaching and was subsequently appointed by the state
education department to coordinate the state Biotechnology Education Network,
where his role included the design and implementation of a biotechnology
professional development program for educators. As a result, the researcher has been
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intimately involved in the evolution of biotechnology education within schools in his
state.
1.2 CONTEXT
1.2.1 What is Modern Biotechnology?
Biotechnology is a broad term for a group of technologies based on the
application of living systems and/or biological processes to solve problems. The
practice of biotechnology has, from antiquity, been an integral part of human culture,
with traditional biotechnology applications such as brewing, fermentation and
directed plant and animal breeding programs having been around for thousands of
years. Since the mid-1970s, biotechnology has evolved more specialist applications,
including the direct and overt manipulation of genetic material. ‘Modern’
biotechnology accesses the breadth of nature’s diversity, using cellular and
molecular processes to develop new products that combine functions and traits, are
environmentally benign and treat global challenges (Biotechnology Australia, 2005).
Biotechnology is now a powerful enabling technology, with applications that
have the potential to revolutionise many industry sectors, as well as having the
potential to change our fundamental perceptions of what it is to be human. It is
quickly establishing itself as a cornerstone of contemporary science, and is currently
one of the major scientific areas of public interest. As its growth continues to
accelerate, biotechnology generates health and environmental benefits and is set to
make a progressively significant impact on the economies of nations throughout the
world, and on the lives of their citizens (Commonwealth Biotechnology Ministerial
Council, 2000; The Biotechnology Institute, 2005). The National Research Council
Canada (2005) states:
It is believed that the transformative nature of biotechnology eventually will
impact most sectors of the global economy. Biotechnologies are often regarded
as the most significant S&T (science and technology) of the current century,
with impacts exceeding those of information and communications technologies.
(p. 9)
While biotechnology is now generally recognised as having important
multidimensional societal impacts, it was not until the first agricultural and medical
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products began to reach the public domain in the 1990s that the global general public
came face-to-face with biotechnology and needed to begin to make decisions about
their personal attitudes towards this science, due to the many ethical, moral and
social concerns about its applications. Fortunately, governments, scientific
establishments, industry and consumer groups all recognise the need for the public to
be helped to understand the technical, economic and ethical facts and significance of
biotechnology, and to make informed decisions for themselves. Internationally,
multiplicities of public educational initiatives have resulted, with varying degrees of
enthusiasm and urgency (Moses, 2002).
1.2.2 The Australian Context
Biotechnology holds the promise of improved health and welfare for all
Australians and has the potential to deliver productivity, competitiveness and
sustainability benefits to our nation. In the future, the standard of living enjoyed in
Australia will be strongly influenced by whether we can grasp the opportunities
presented by biotechnology (Commonwealth Biotechnology Ministerial Council,
2000). Australia has already developed a world class reputation in biotechnology
research and application, and Governments at all levels within Australia are working
to ensure that there is access to the skills and knowledge needed to keep pace with
this global revolution (Commonwealth Biotechnology Ministerial Council, 2000).
There is also the recognition that community attitudes are a crucial issue in the
development of the Australian biotechnology sector (Commonwealth Biotechnology
Ministerial Council, 2000).
The Australian Government has followed most other developed countries in
its decision to develop a national biotechnology strategy. In July 2000, the Australian
government launched the National Biotechnology Strategy, managed by
Biotechnology Australia, to provide a framework for the development of Australian
biotechnology (Biotechnology Australia, n.d.). Funding has been provided for
targeted initiatives to support the Government’s vision. The key objective of the
National Biotechnology Strategy is to provide a framework for Government and key
stakeholders to work together to ensure that developments in biotechnology are
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captured for the benefit of the Australian community, industry and the environment,
while safeguarding human health and ensuring environmental protection. In July
2004, under Backing Australia’s Ability- Building Our Future through Science and
Innovation, the Australian Government provided further funding to continue the
National Biotechnology Strategy until 2008. Biotechnology also benefits from access
to funding through other Government programs in the health, agriculture,
environment, industry and education portfolios.
The National Biotechnology Strategy outlines the Government’s vision and
support for biotechnology, including its undertaking to ensure that Australians have
access to world class education in biotechnology. Through Biotechnology
Australia’s Biotechnology Online school resource (Biotechnology Australia, 2005)
balanced and factual information about biotechnology is provided to students and
teachers. It has been designed to fit with Australian State and Territory Science
curriculum statements, with cross-over into Studies of Society and the Environment
to allow for broader discussion of the issues. This resource aims to address the need
for Australian secondary schools to have access to up-to-date information about
biotechnology. It supplements other educational resources by providing
informational text, case studies, online and off-line activities for students, and
support notes for teachers.
In addition to the Australian Government’s contribution to biotechnology,
State and Territory governments also commit substantial resources to its
development. There is general agreement between the Australian, State and Territory
Governments that more can be done cooperatively to help build on Australia’s
strengths in biotechnology and, in 2004, a National Approach Work Program was
agreed to by Australian Governments to build collaboratively on national strengths in
biotechnology to avoid duplication and dilution of effort.
1.2.3 The School Science Curriculum and Biotechnology
It has been argued by Millar (1996) that the school science curriculum should
be designed to promote scientific literacy, so that the majority of students have the
opportunity to become scientifically literate. In a report on science education in
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Australian schools, Goodrum et al., (2001) stressed the need for science education to
prepare students for their future roles as citizens in an age of science and technology,
in order to enable them to confidently contribute to debates and make reasoned
judgements about moral, ethical and social issues and the role of science and
technology in shaping their lives. Dawson and Soames (2006) have noted that the
importance of scientific literacy has received significant emphasis in science
education.
In line with impacts being felt across all areas of Australian society, it has been
identified that students are increasingly operating in a national and global society and
economy (Curriculum Corporation, 2006), which has resulted in the science curricula in
Australia undergoing a series of significant changes. This mandated curriculum
change has been significant in that it has played a critical role in creating a purpose
to pursue biotechnology education and a need for teacher professional development
in knowledge, pedagogical, socio-scientific and practical aspects of biotechnology
education.
At the July 2003 Ministerial Council on Education, Employment, Training
and Youth Affairs (MCEETYA) meeting, Ministers agreed to the development of
Statements of Learning for Science that define and deliver common curriculum
outcomes to be used by education jurisdictions across Australia to inform their own
curriculum development in the science domain. These Statements of Learning for
Science have been developed collaboratively by State, Territory and Australian
education authorities and provide a description of the body of knowledge, skills,
understandings and capacities which it is essential that all students in Australia should
have the opportunity to learn. Australian education jurisdictions have agreed to
implement these collaborative statements in their own curriculum documents in order to
achieve greater consistency in curricula (Curriculum Corporation, 2006).
Within this atmosphere of evolving curricula with scientific literacy goals and
an emphasis on students learning to work the way “real” scientists work by
investigating, understanding and communicating in real life contexts, modern
biotechnology has three characteristics that make it ideal for inclusion in the
Australian schools’ curricula (Schibeci, 2004b). These are:
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1. Cutting edge science and technology;
2. Science and technology with direct social implications; and,
3. Directly relates to innovation and the Commonwealth’s Backing
Australia’s Ability initiative, as well as state government initiatives.
In addition, because of the constant media attention paid to areas of
biotechnology such as genetically modified foods, forensics and human health
applications, biotechnology holds high intrinsic interest value to contemporary
science students.
The declining recruitment to science is seen as a large problem in Western
countries. ROSE, the Relevance of Science Education, is an international
comparative project meant to gather and analyse information from learners to shed
light on affective factors of importance to the learning of science and technology
(ROSE, 2008). This study has ascertained the lack of relevance to students of the
science curriculum as one of the major reasons for student disenchantment with
school science. However, the ROSE study does show that recruitment of Western
students to the biological sciences is not falling, which may indicate that the
biological sciences have direct relevance to the students (Schreiner & Sjøberg,
2007). This is supported by the research of Kidman (2008), where biology students
indicated that they would enjoy a redesigned biology curriculum that better reflects
the reality of modern science and technology.
An inspection of curriculum statements for each Australian state and territory
shows that existing curriculum links can be found in Junior and/or Senior Science
subjects that enable biotechnology to be currently integrated and embedded within
the Science curricula (Biotechnology Australia, 2005).
1.2.4 The Biotechnology Curriculum
If we consider the positioning of biotechnology in international curricula, it
would seem that to a large extent, curriculum writers have positioned ‘modern’
biotechnology in the senior sciences (particularly biology) with a strong applied
science focus. In contrast, ‘traditional’ biotechnology tends to be positioned in the
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junior sciences, thereby limiting the ability of these students to engage with
contemporary science (France, 2007). This also significantly limits their
opportunities to explore and critically debate the cost-benefit-risk dilemmas that
arise from contentious areas such as cloning, stem cell technology, genetic
modification, and the resulting ethical issues (Phoenix, 2000).
The challenge for educators is to teach students in both the junior and senior
sciences about biotechnology and get them excited at the prospects and opportunities
of pursuing further study or a career in this high value area, or in allied areas such as
marketing, communications, finance and law (Daugherty, 2007). One way to
accomplish both goals is to offer an intensive curriculum of study that exposes
students to not just the science of biotechnology, but the applications as well (Moss,
2007). Regardless of whether students continue in the scientific or business arenas of
biotechnology, or if they pursue other interests, they will be more scientifically
literate citizens who can better evaluate the growing number of bioethical and
bioeconomical issues (Daugherty, 2007).
There are many basic concepts and laboratory skills that individuals must
master in order to pursue further study or work in the field of biotechnology
(Daugherty, 2007) or to contribute to socio-scientific discussions in a meaningful
manner. An analysis of existing overseas biotechnology curricula (Daugherty, 2007;
Moss, 2007) suggests that teachers need a good foundation of knowledge and
laboratory proficiency in basic molecular biology, specifically related to DNA and
protein structure and function, in order to be able to provide effective, student-
centred learning experiences that have a positive impact on student learning, and to
be able to design authentic assessment items. In addition, these teachers need to
understand the nature of science, science in society, and how to deal with
controversial issues in the classroom.
According to Moss (2007), biotechnology topics and their sequence of
presentation should be designed to introduce key concepts in an efficient and logical
manner to enable students to have reinforcement of previously studied concepts as
well as learn the applications of the concepts. Daugherty (2007) states that the
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curriculum should be grounded in the philosophy that the concepts of science
support the processes of science.
The basic biotechnology practical learning experiences that support a
biotechnology curriculum require essential items of equipment that may not be
commonly found in most high school laboratories (Moss, 2007). This equipment is
supported by a range of consumable items which varies widely depending on the
activities undertaken (Moss, 2007). These equipment and consumable items are
listed in Table 1.1.
TABLE 1.1:
Essential Biotechnology Equipment and Consumable Items.
EQUIPMENT CONSUMABLE ITEMS
Electrophoresis Chambers Agarose
Power Supplies Electrophoresis Buffers
Micropipettes DNA
Incubator Nucleic Acid and Protein Stains
Waterbath Pipette Tips
Microcentrifuge Microcentrifuge Tubes
Ultraviolet Light Source Enzymes
Thermocycler
1.2.5 Teachers and Biotechnology
Teachers are the key people who determine what is taught (or not taught) in the
classroom (McNeill & Krajcik, 2008), so it is important to identify that which teachers
perceive as being the enablers and barriers to their conducting learning experiences, for
example a course in biotechnology, with their students. It is also important to know
what encourages and discourages science teachers from including biotechnology in the
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secondary curriculum, and to improve their confidence to teach biotechnology topics
(Leslie & Schibeci, 2006).
As previously stated, the location of biotechnology education is mandated by
the curriculum, but the way it is understood and included by teachers in their science
programs is clearly influenced by the interests, knowledge, education and
professional experiences of individual teachers (Leslie & Schibeci, 2006). Very few
teachers have ever become fully fledged members of the scientific community
(Duschl & Osborne, 2002), that is, most science teachers have not had any practical
experience in the field they are teaching. It is not surprising, then, that few science
teachers have a good understanding of modern biotechnology as many would have
completed their own education with little or no biotechnology or molecular biology
in their degree (Schibeci, 2004b), which certainly holds true for older science
teachers. The younger teachers on the other hand, may have received more molecular
biology in their own training, and are more likely to emphasise biotechnology where
appropriate in their teaching. There is also some dichotomy among science teachers
with regard to the aspects of biotechnology that they teach, where some treat
biotechnology in the context of the biological sciences (content and laboratory
techniques), and those with some social science background use biotechnology as an
opportunity to explore and critically debate the dilemmas and ethical issues that arise
from its application (Phoenix, 2000).
A survey conducted by Leslie and Schibeci (2003) revealed that Australian
science teachers’ understanding of biotechnology varies greatly. Moreover, the limit
of their content knowledge affects their perception of that content and whether or not
the teacher includes it into their science program. If teachers do not have sufficient
background knowledge in the area of biotechnology, lack the necessary laboratory
skills to pass on to their students, or lack the confidence to deal with controversial
socio-scientific issues, they are unlikely to try something new in the classroom. In
addition, these teachers may fail to identify the misconceptions or lack of
understanding that students may have about biotechnology (Dawson & Shibeci,
2003).
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Teachers' self-efficacy beliefs have been repeatedly associated with positive
teaching behaviours and student outcomes (Tschannen-Moran & Hoy, 2001). Their
level of understanding of the subject matter influences teacher confidence, and
increasing confidence relates to the way in which the concepts are treated in the
classroom. The work of de Laat and Watters (1995) has shown that teachers with a
stronger background in specific science topics were more self-efficacious and
innovative in their approaches to teaching science. With increased confidence,
teachers are more likely to expose students to the content in more diverse ways
(Tomanek, 1992). Teachers with a well-developed knowledge and understanding of
the content are able to adapt materials to suit learners of different abilities and
learning styles, and are able to make links with other ideas or to other learning areas,
thereby promoting exploration of related issues in relevant contexts (McDiarmid,
1995). These teachers are able to enhance understanding by the students and are also
able to recognise student misconceptions or misunderstandings, moving these
students to more scientifically acceptable conceptual understandings.
While researchers argue that meaningful improvement in education rests with
teachers, not with government, academics and curriculum developers (Atkin &
Black, 2003), it cannot be expected for science teachers to change the curriculum
without support. Clearly, professional development for science teachers is required.
Through an effective and sustainable professional development program, science
teachers must be enabled to include biotechnology education as an accessible aspect
of the science curriculum and to have a meaningful and positive effect on student
scientific literacy, that is, on their understanding of basic scientific concepts,
language, history and philosophy, as well as an acquisition of skills. This
requirement has implications for continuing professional development of science
teachers, lending significance to the proposed research, as to date, no model of
professional development for biotechnology education exists in Australia that
reflects these implications for the local context.
The success of the process of curriculum reform relies on informed teachers
who are ultimately responsible for the implementation of new syllabi, assessment
practices and student performance (Peers, Diezmann & Watters, 2003). The rapid
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changes in contemporary science, coupled with a growing emphasis on the role and
responsibility of learners to construct meaning and regulate their learning (Tytler,
Smith, Grover & Brown, 1999) necessitate that teachers re-examine their subject
knowledge and assumptions about the nature of science learning and teaching (Bell
& Gilbert, 1996; Borko & Putnam, 1995) and develop their professional skills.
However, for many teachers, change is not easy to achieve or sustain due to
inadequate professional support and resources (Atkin & Black, 2003; Wallace &
Louden, 2003).
Professional development is an essential element of comprehensive teacher
preparation for teaching a new, complex and contentious area of science such as
modern biotechnology, which demands much of teachers, including a deep
knowledge of the subject matter; a good understanding of how students learn and
think; and a commitment to working closely with colleagues (including laboratory
technical support staff) to design learning activities and appropriate assessments
(American Federation of Teachers, 2002). Without professional development, school
reform and improved achievement for all students will not happen. Education
departments and academics can set forth a visionary scenario for the future of
science education, but unless the classroom teacher understands the science, is
committed to reforming the curriculum and knows how to make it happen, their
vision will not be realized. This requires a carefully crafted, well supported
professional development design (American Federation of Teachers, 2002).
1.3 PURPOSES
This study had three purposes, and seven research questions:
P1. To document the recent evolution of modern biotechnology education in
schools as part of the changing nature of science education.
RQ1. How have current teacher professional development processes
been cultivated, to support the integration of biotechnology into
classroom practice?
P2. To examine the process used by secondary schools to adopt and
implement a new science curriculum – modern biotechnology.
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RQ2. How were teachers influenced to adopt the new curriculum?
RQ3. How did teachers actually implement the new curriculum?
RQ4. How did concerns raised by teachers, change over time as they
incorporated biotechnology into their classrooms?
RQ5. What factors were related to changes in the patterns of teacher
concerns and use of the new curriculum?
P3. To propose an evidence-based professional development model for
biotechnology education for science teachers.
RQ6. Why is a biotechnology professional development model
necessary?
RQ7. What key components are required in a biotechnology
professional development model?
1.4 SIGNIFICANCE
This research is significant in that it addresses an apparent void in the
research literature. It identifies barriers and critical success factors which will help
inform decisions by school systems, teacher professional associations and university
teacher education faculties in supporting teachers and teacher educators to acquire
the skills and knowledge needed to ensure effective engagement with 21st Century
science education in the school setting. The research forms the first stage of a
planned future implementation and evaluation of a sustainable model of best practice
for biotechnology education professional development. This will enable science
teachers to integrate biotechnology specific skills-based laboratory learning
experiences into classroom practice, and ensure that there are positive student
learning outcomes.
1.5 THESIS OUTLINE
Chapter One outlines the background to this study, identifying that there has
been significant change in recent years regarding views about the purpose of science
education, and that these changing perspectives have serious implications for the
teaching of science. These views and their inherent implications are linked to a
significant degree to the emergence of contemporary areas of science, including
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modern biotechnology. It is noted in this chapter that both Australian and other
governments and education agencies recognise the importance of understanding
biotechnology to the acquisition of scientific literacy by their citizenry, and that the
school science curriculum supports the embedding and integration of biotechnology
education. However, it has also been noted that in order for the process of curriculum
reform to be successful, a carefully crafted biotechnology professional development
design is required to support science educators.
In Chapter Two, a review of the literature presents an overview of the current
thinking and perspectives on the complex nature of teacher professional development
in science and describes the trends and approaches that are apparent. A theoretical
framework is offered, through which the literature is analysed and the data analysis
is informed. The need for significant reform across the board is argued and the need
for partnerships to enable significant collaboration and coordination between the
stakeholders and professional development providers is highlighted, with the
suggestion that professional development models are complex and need due
recognition by system leaders. The chapter concludes with evidence based
suggestions from the literature for the inclusion of particular design components in a
biotechnology professional development program.
Chapter Three outlines the research design chosen to undertake this study and
discusses the methodology used to collect data from identified Queensland educators
(teachers and laboratory technicians) who had previously engaged in biotechnology
professional development over a five year period (2003 - 2007).
Chapter Four presents the results of the analysis of the content of documents,
individual interviews and focus group discussions, addressing each of the Research
Questions.
Chapter Five concludes the thesis with an analysis and discussion of the
findings of the research and uses the implications of these findings to propose an
evidence-based professional development model for biotechnology education.
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Chapter 2 Literature Review
2.1 INTRODUCTION
Although there are a significant number of research studies focusing on the
effects of professional development programs on teachers and teacher practice,
students and student performance, there are a relatively small number of research
studies that consider professional development effects on student learning with
specific reference to science. Prior to Hewson (2007), previous reviews of
professional development in science (Kennedy, 1999; Wilson & Berne, 1999)
outlined very few relevant studies. One reason why there are so few studies of
professional development in science is the complexity of what is being studied. The
connection between teacher learning outcomes, student learning outcomes,
knowledge, beliefs, attitudes and skills, along with school, home and community
contexts is complex and long (Hewson, 2007), requiring multiple levels of
professional development evaluation (Guskey, 2000).
This literature review examines the current thinking and perspectives on the
complex enterprise of teacher professional development in science, including the
changing nature of science education; the science teacher as learner; perspectives on
teacher professional development in science; professional development and student
learning; the attributes of good professional development programs, and
biotechnology professional development. Although there are many aspects of
professional development that are shared across disciplinary contexts and there is
much to be learned from studies that make no reference to the subject matter of
science, studies included in this literature review have an explicit focus on teachers
of science due to the specific character of the teaching/learning process within this
discipline. This analysis does not explicitly review literature from outside the
discipline of science but the influence of more generic literature is inherent in many
of the studies examined.
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From the literature review, there is a clear indication that the current
literature is deficient in studies that focus on supporting teacher engagement with
contemporary science such as biotechnology and in enabling its integration into
classroom learning experiences to effect positive student learning outcomes. There is
an identified need for research for the design and implementation of a relevant
professional development program for science teachers.
2.2 THE CHANGING NATURE OF SCIENCE EDUCATION
In recent years, the impetus for research by the science education community
into an appropriate science curriculum for the new millennium has been provided by
various stimuli, but perhaps most significantly by the scientific literacy movement.
This research into the changing nature of science demonstrates an increasing
awareness that the paradigm of science extends beyond a narrow reductionist view
and fact-based certainty (Jenkins, 1992; Miller & Osborne, 1998; Solomon &
Thomas, 1990), and that it requires consideration of the pedagogical content
knowledge required by teachers as well as an increasing appreciation of the socio-
scientific impact of science (Gray & Bryce, 2006), to enable the development of
scientific literacy by students. Researchers have stated that redesigning the school
science curriculum to improve student levels of scientific literacy prepares them for
their future role as citizens (Jenkins, 1999; Popli, 1999; Solomon & Thomas, 1990),
by developing their critical awareness (Kind & Taber, 2005; Miller & Osborne,
1998). Osborne (2000) questioned whether, to date, this has been adequately
achieved.
Goodrum, Hackling and Rennie (2001) prepared a major national research
report on science education in Australian schools in which they stressed the need for
the science curriculum to prepare students for their future roles as citizens in an age
of science and technology. They reported that students need to be:
…skeptical and questioning of claims made by others about scientific matters,
to be able to identify questions and draw evidence-based conclusions, and to
make informed decisions about the environment and their own health and well-
being. (p. 166)
Dawson and Soames (2006) added to this statement by saying that:
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A high level of scientific literacy can help young people to question the claims
of the scientific community, weigh up evidence about scientific issues, use
critical thinking skills and enable them to use their understanding of science to
make well-informed and balanced decisions. (p. 184)
To be effective, the school science curriculum needs to place less emphasis
on the narrow view that science is simply a body of knowledge, and more emphasis
on the broader processes that operate within the scientific community, so that
students are better prepared for decisions with a socio-scientific dimension. This is
not to say that content knowledge is unimportant. As Shymansky, Henriques,
Chidsey, Dunkhase, Jorgensen, and Yore (1997) acknowledge, it is important to
recognise that neither teaching nor learning take place in the absence of content
knowledge, but rather in isolation, content knowledge may not be sufficient in itself
to enable students to make rational decisions (Harding & Hare, 2000).
Reforming science teaching, however, is difficult because science classrooms
are complex environments. Numerous studies have reported on the challenges
associated with helping both inservice and preservice science teachers implement
change in the classroom (Beck, Czerniak, & Lumpe, 2000; Crawford, 1999; Naylor
& Keogh, 1999; Tobin, Kahle, & Fraser, 1990). In a review of research on science
teaching, Keys and Bryan (2001) stated that the field needs further research on
teachers as they attempt to implement the methods advocated in reform documents.
2.3 THE SCIENCE TEACHER AS LEARNER
Teachers work in a community where learning is regarded as a natural and
expected component of the professional activity of teachers and schools (Clarke &
Hollingsworth, 2002). A literature search focusing on the science teacher as learner
returns many results which focus on the development of understanding and
knowledge of science teaching generally - there are few studies specific to science
teaching that focus on what can be accomplished in the science classroom with
respect to a combination of a reformed curriculum and new pedagogical methods
(Huffman, 2006). This presents both a challenge and opportunity to researchers as it
highlights the need for a more concerted effort in this area.
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The views and expectations for teaching have changed over time in conjunction
with the views of the nature of learning. We are witnessing significant changes in our
understanding of knowledge itself: how new knowledge is created, what is important to
know, how new information is obtained, and how people learn. Research into teacher
learning was originally based on a developmental (pathway) model (Fuller, 1969; Fuller
& Brown, 1975), however, over time, ‘good teaching’ became aligned with the notion
of reflective practice (Clarke, 1995; Loughran, 1996; Schön, 1987). These developments
proceeded simultaneously with the growth in understanding of constructivism, which
reflected a shift in the views of the nature of learning from a predominantly behaviourist
model to more cognitive and phenomenological models (Clarke & Erickson, 2004).
Thus, through the developments in examination of teacher practice, the notion of teacher
as learner has emerged as an important construct in extending perceptions of quality in
science teaching and learning. As a descriptor, the term “teacher as learner” is apt as it
challenges the traditional view of science teaching as being transmissive. Science
teacher as learner suggests a concern, from the science teacher’s perspective, for the
improvement of teaching practices - an ongoing commitment to teach science for
understanding and to better align their teaching with their expectations for their
students’ learning. This means that the notion of science teacher as learner is clearly
related to understandings of contemporary theoretical perspectives on learning
(Loughran, 2007).
The literature shows a clear distinction between beginning and experienced
secondary science teachers (the two ends of a continuum) as learners. In their study of
science teachers moving from preservice to the early years of teaching, Adams and
Krockover (1997) found that much learning occurs in the initial shifts from didactic
teaching practices, that is, excessively instructional, toward conceptual/constructivist
teaching and learning practices as a result of reflection and the need to develop
satisfying approaches to professional practice. However, when experienced science
teachers are faced with unfamiliar content (such as biotechnology), they become
beginning science teachers again (White, Frederiksen, Frederiksen, Eslinger, Loper &
Collins, 2002). Geelan (1996) showed how, when an experienced teacher is placed in
the position of learner, the need to articulate understandings of teaching and learning is
catalysed, the teacher experiences an induction phase (Anderson & Mitchener, 1994)
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where there is a need for genuine support and guidance so that the science teacher can
begin to emerge as a result of confidence gained through risk-taking and experimenting
with practice, as highlighted in Trumbull’s (1999) longitudinal study.
2.4 PROFESSIONAL DEVELOPMENT
The science of developing teachers is the domain of professional
development, which teachers access throughout their careers to update their
knowledge and skills. There are a number of well-established international journals
dedicated to this area as a field of study (e.g., Journal of Science Teacher Education;
Teaching and Teacher Education) as well as journals that focus on continuing
professional development in specific levels of education or areas of study (e.g.,
Journal of Biological Education). From these journals and other sources of data
emerge a number of major trends and findings related to continuing professional
development in general and in relation to science education.
The United States National Science Education Standards (National Research
Council, 1996) state that professional development for teachers should be analogous
to professional development for other professionals where activities, formal and
informal programs are undertaken by individuals to learn about and reflect on
education theory and practice to increase or improve skills. In their study into
developing a model of teacher professional development for the integration of
information and communication technology into classroom practice, Downes et al,
(2001) reported on the importance of considering professional development as an all-
embracing term which includes the continuum from pre-service teacher education to
the continuing professional development of experienced teachers. This is how
professional development is considered in this proposal. Pre-service teacher
education refers to the formal programs provided by academic units within
universities or equivalent institutions, to teachers who are not yet registered.
Continuing professional development refers to any activity that develops existing
teachers’ professional skills, knowledge and expertise. Systemic professional
development refers to an overall coordinated system-level strategy of professional
development (American Federation of Teachers, 2002) for the teachers, laboratory
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technical staff, school leaders, curriculum developers, head office and district
personnel and other relevant professional staff.
Non-educators often refer to teacher professional development as teacher
training- a term many educators feel has an unprofessional connotation and therefore
dislike, as it carries the perception of dealing with competency training, rather than
professional education (National Academy of Sciences, 1996). In general, two types
of professional development have been identified in the literature- individually based
and systemic. In-service, workshops and staff development are synonyms for
professional development activities for teachers that can be found in this report. As
stated by the American Federation of Teachers (2002):
Professional development is a continuous process of individual and collective
examination, improvement of practice and reflection. It should empower
individual educators and communities of educators to make complex decisions;
to identify and solve problems; and to connect theory, practice, and student
outcomes. Professional development should also enable teachers to offer
students the learning opportunities that will prepare them to meet world-class
standards in given content areas and to successfully assume adult
responsibilities for citizenship and work. (p. 4)
To assist in the establishment of effective professional development, the
American Federation of Teachers (2002) prepared a set of guidelines, based on
research evidence, for creating professional development programs- Principles for
Professional Development. The guidelines state (pp. 4 – 10) that professional
development should:
1. Deepen and broaden knowledge of content.
2. Provide a strong foundation in the pedagogy of particular disciplines.
3. Provide knowledge about the teaching and learning processes.
4. Be rooted in and reflect the best available research.
5. Align its content with the standards and curriculum that teachers use.
6. Contribute to measurable improvement in student achievement.
7. Be intellectually engaging and address the complexity of teaching.
8. Provide sufficient time, support, and resources to enable teachers to
master new content and pedagogy and to integrate this knowledge and
skill into their practice.
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9. Be designed by teachers in cooperation with experts in the field.
10. Take a variety of forms, including some we have not typically
considered.
11. Be job-embedded and site specific.
Professional development for science teachers is currently of considerable
importance, as internationally a new vision of learner-centred instruction is being
developed (Hewson, 2007). In parallel with this ongoing reform there has been a
major push to develop new curricula that contain significant changes in what
students are expected to learn, as science has a rapidly changing knowledge base and
expanding relevance to societal issues (National Research Council, 1996). This push
necessitates science teachers having ongoing opportunities to build their
understanding and abilities. Science teachers must also have opportunities to develop
understandings of how students with diverse interests, abilities, and experiences
make sense of scientific ideas, and what is required to support and guide them.
Teachers require the opportunity to study and engage in research on science teaching
and learning, and to share with colleagues what they have learned. Undertaking
professional development to become an effective science teacher is a continuous
process that stretches from pre-service experiences to the end of a professional career
(National Research Council, 1996).
Although it may seem prudent to put the majority of effort for reform into
pre-service education, Anderson and Mitchener (1994) indicate in their review of
research on science teacher education that although important and influential,
improved pre-service teacher education will never be the key impetus to education
reform. The proportion of new teachers entering the profession each year is a small
subset of the total teaching force, meaning that it will take considerable time to effect
change in the teaching profession as a whole if this is the sole means by which it is
done. In addition, new teachers enter the profession without much power, meaning
that there is little chance that they were able to influence their colleagues.
Consequently, focusing the provision of professional development on practicing
teachers is clearly one of the most essential aspects of science education reform, if
not the most important aspect (Huffman, 2006), because in this current climate of
Page 23
reform and educational context change, teachers’ existing practices and beliefs may
not be well matched with the revised demands of the reform efforts (Hewson, 2007).
This is not to say that research results from studies of biotechnology education with
practicing teachers should not be extended and extrapolated to programs of science
teacher education, to address the potential that pre-service teachers may learn more
about how to teach science than about the science and scientific concepts (Russell &
Martin, 2007).
When considering professional development of practicing science teachers, it
is necessary to recognise two essential focal points (Hewson, 2007) - the teachers
who are experiencing professional development (Broekhuizen & Dougherty, 1999),
and the explicit professional development programs that they are undertaking. It
should also be recognised that the ultimate purpose of professional development is
the improvement of student learning (Hewson, 2007).
Traditionally, those who provided professional development to teachers were
considered to be trainers. Now their roles have broadened immensely. When
appropriate, in addition to being trainers they have to be facilitators, assessors,
resource brokers, mediators of learning, designers, and coaches (Loucks-Horsley,
1996). It is useful at this point to consider who should be termed as a ‘professional
developer’. Boyd, Banilower, Pasley and Weiss (2003) identified a wide array of
individuals who could be considered as providers of professional development, and
although teachers often are their own personal professional developers, for the
purposes of this study a professional developer was regarded as someone who is
responsible for the professional development of others.
In order to optimally facilitate the professional development of science
teachers, it is necessary to understand the process by which teachers grow
professionally and the conditions that support and promote that growth (Clarke &
Hollingsworth, 2002). However, research on teacher professional development in
science is complicated and difficult due to its inherently complex nature, which
consists of a number of interrelated components such as the curriculum; the teaching
and learning environment; teacher beliefs and practices; teacher professionalism; and
Page 24
the inherent nature of science (Hewson, 2007). The pathways of influence of
professional development from the original activity to student learning proceed
through intervening variables of teacher learning and classroom enactment-pathways
which are complicated and bound to the educational and social environments of
schools and communities. This necessitates research focusing on the nature of the
relationships between these components, while concurrently exploring each of these
components in its own right (Hewson, 2007).
2.5 THE IMPACT OF TEACHER CONCERNS ON PROFESSIONAL
DEVELOPMENT PROGRAMS
A fundamental consideration that has implications for those developing or
leading teacher professional development is that learning brings change, and
supporting people in change is critical for learning to take hold (Hord, Rutherford,
Huling-Austin, & Hall, 1987; Loucks-Horsley, 1996). Teachers progress through
stages of interest and commitment when learning new teaching strategies or using
new curricula. Knowledge of this process can help professional developers to reach
an understanding of why it is so difficult to effect the same degree of change in
everyone, and why the immediate results of professional development programs may
not be the changes that were expected.
The Concerns Based Adoption Model (CBAM) is arguably the most robust
and empirically grounded theoretical model for the implementation of educational
innovations (Anderson, 1997). It is a well documented model of attitude change
which is helpful in determining the sequence of change as new teaching programs
and expectations are implemented. CBAM applies to anyone experiencing change,
that is, policy makers, teachers, parents, students (Loucks-Horsley & Stiegelbauer,
1991). The model is a theory of change that describes, explains, and predicts
probable teacher behaviors in the change process. It holds that people considering
and experiencing change evolve in the kinds of questions they ask and in their use of
the innovation. The model is made up of two strategies, the Stages of Concern and
the Levels of Use (Hord et al., 1987).
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The concerns model identifies and provides ways to assess seven stages of
concern. The seven stages are: Awareness, Informational, Personal, Management,
Consequence, Collaboration, and Refocusing. The first stage, Stage 0, Awareness,
indicates that a teacher has little concern or involvement at this time with the new
program. The other six stages reflect three categories: Self, Task, and Impact. The
Self category is derived from two stages Informational and Personal. It is in the Self
category that teachers express a general interest in the new program and would like
to know more about it (Pedron & Evans, 1990). They also question how the new
program will affect them. The Task category deals with Management. Teachers learn
the processes and tasks of the new program and how to implement the change. They
focus on information and resources. The final category, Impact, deals with
Consequence, Collaboration, and Refocusing. The stages in this final category focus
on the program’s impact on the students’ achievement and teachers work
cooperatively in implementing the program. The teachers also consider the benefits
of the program and consider ideas for improvement. In general, early questions are
more self-oriented and when these questions are resolved, questions emerge that are
more task-oriented. Finally, when self- and task concerns are largely resolved, the
individual can focus on impact and improvement of process (Loucks-Horsley, 1996).
These stages of concern are the most important tool in the concerns model
because they can be used to measure the level of concerns of teachers involved in
program change (Christou, Eliophotou-Menon, & Philippou, 2004). These stages
have major implications for professional development as they point out the
importance of attending to where people are and addressing the questions they are
asking when they are asking them. The kinds and content of professional
development opportunities can be informed by ongoing monitoring of the concerns
of teachers. Acknowledging these concerns and addressing them are critical to
progress in a reform effort.
The second strategy within CBAM- Levels of Use, entails eight different
levels of change that teachers experience when they are implementing a new
program and can be used to determine where a teacher stands at any given time in
relation to the change process. With the Levels of Use, the first level is Non-Use,
Page 26
which is where the schools have not expressed an interest. The second level is
Orientation; the school is acquiring awareness of the new program. The third level is
Preparation and this is when the school is preparing for the new program by training
teachers and ordering materials. Mechanical Use is the fourth level. It is here where
the implementation of the new program is occurring, and the teachers are having
difficulty teaching the new materials often resorting to the manuals; their frustration
levels are high and the teachers are still not convinced. The fifth level is Routine and
by now the teachers have created a routine and feel comfortable using the new
program. They are getting the hang of it and want to get better at teaching it. The
focus is on the teaching process, not the outcome. It is essential that school leaders
make sure that a school does not stabilise at the routine level (Hord et al., 1987).
Refinement is the sixth level where the teacher is using the program to increase the
expected benefits within their classroom. The teacher can see the impact of this
program working and uses the program to maximise the effects of student
achievement (McCarthy, 1982). It is in the seventh level, Integration where the
teacher believes that the program is important to him/her and combines his or her
own efforts with related activities of other teachers and colleagues to enable student
achievement (Bailey & Palsha, 1992). The final level, Renewal, is where the teacher
re-evaluates the quality of use of the program in their classroom, seeks major
modifications, and explores new developments as a staff and school. The level of use
that a teacher progresses to in implementing a change can be impacted on by the
characteristics of the professional development (Anderson, 1997).
Professional developers who know and use CBAM, design experiences that
are sensitive to the questions that educators are asking, at the time they are asking
them. Learning experiences evolve over time, take place in different settings, rely on
varying degrees of external expertise, and change with participant needs. The
strength of CBAM is that it is designed to pay attention to individuals and their
various needs (Loucks-Horsley, 1996).
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2.6 TEACHER PROFESSIONAL DEVELOPMENT IN SCIENCE
An analysis of the outcomes and limitations of traditional ‘up-date’ (Nasseh,
1996) or ‘top-down’ (Van Driel, Beiiaard & Verloop, 2001) professional
development programs can be used to argue that sustainable future models of
professional development should take account of the current broad consensus that
teachers play a central, key role in any model of educational improvement. What this
implies, is that if science teaching is to address student scientific literacy more
effectively, future forms of effective professional development must recognise that
the teacher is at the heart of any professional development program, and hence
involve teachers in reflecting on the scientific, the social and the pedagogical
dimensions to ‘new science’, and to relationships between them in the interests of
improved classroom learning. In other words, if teachers are not involved,
educational reform will not happen. It is also essential to recognise that it is the
teachers themselves who are responsible for their own professional development
(Kennedy, 1999; Shapiro & Last, 2002; Wilson & Berne, 1999). These propositions
are supported by numerous studies of a range of contexts in Australia, the United
Kingdom and the United States, some of which are outlined below.
Case studies involving one or two teachers (Appleton & Asoko, 1996; Hand
& Prain, 2002; Roseberry & Puttick, 1998) have allowed in depth consideration by
researchers of aspects of science professional development activities and the
implementation of new ideas by the teachers. These studies have concluded that
teacher inservice is more beneficial where there is a degree of teacher ownership of
the process; it effectively models the principles being taught and provides regular
ongoing support and resources.
In studies involving larger numbers of teachers participating in a range of
professional development programs (Briscoe & Peters, 1997; Garet, Porter,
Desimone, Birman & Yoon, 2001; Sandholtz, 2002; Supovitz & Turner, 2000), it
was found that there was a strong relationship between the extent of a teachers’
professional development and their adoption of reform-oriented teaching practices.
These studies showed that program support structures (external support and peer
collaboration), were key to the development of the content and pedagogical
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knowledge of the teachers and in sustaining their commitment and enthusiasm.
Additionally, teachers appreciated opportunities to explore, reflect, work on
authentic learning tasks, and engage in hands-on, active learning.
It is also important to consider how science teachers develop professionally.
Bell and Gilbert (1996) argue that, to enable development to take place, teacher
development programs must be aware of each of the interwoven components of
personal practice, professional practice and social development. They propose that
developmental progression takes place through a number of phases, where each of
these components is developed, thereby empowering teachers to reconstruct what it
means to them to be a teacher of science within a collegial group.
Teacher professional development in science is about the science; teachers
and their teaching practices, methodologies and activities; students and their
learning; and about the educational contexts in which these take place. It is also
about teachers being adult learners and professionals, who have a stake in the
continuing development of their professional practice, both as individuals and as
members of a collegial professional community. The complexity of teacher
professional development in science suggests that researchers consider not only the
teachers who are experiencing the professional development, but also the systems in
which these professional development programs are embedded, and that they also
consider the outcomes that the programs seek to achieve and the processes that were
undertaken to achieve them. These considerations significantly enhance the
likelihood of programs being successful (Hewson, 2007).
2.7 PROFESSIONAL DEVELOPMENT AND STUDENT LEARNING
The domain of teacher professional development in science extends beyond a
tidy, focused coherent perspective of activities and participants to include the
ultimate improvement of student learning. In the context of systemic reform, teachers
are now expected to achieve better student outcomes in relation to defined areas of
knowledge. Professional development for teachers reflects the need to demonstrate
how new pedagogical approaches can be used in practice in relation to specific topics
and subject-matter areas and also to provide evidence that it is focusing on
Page 29
improving outcomes for students (Carney, 1998). Modelling new pedagogies in non-
specific and decontextualised ways has been demonstrated not to work (US
Department of Education, 2001).
There is a positive correlation between student achievement in science and
teacher professional development (Coughlin & Lemke 1999; Davis 1999; Delannoy,
2000; Groundwater-Smith, 1998; Smith, 1999). Wenglinsky and Silverstein (2007)
outline substantial evidence that well-formulated and sustained professional
development programs for science teachers, that address laboratory skills, hands-on
learning, instructional technology and formative assessment, can significantly
improve student achievement in science.
An important aspect of professional development should also be a focus on
understanding how learners learn. Professional development should not contain the
implicit assumption that a focus on teaching equals a focus on learning; that teacher
professional development will somehow result in better student learning. While it is
reasonable to assume that better teaching will have some positive effect on learning,
it is also essential for professional development to focus deliberately on learners and
learning (Claxton, 2002).
Effective professional development fosters a deepening of subject-matter
knowledge, a greater understanding of student learning and a greater appreciation of
student needs. All these points are important, as students learn in different ways and
come from diverse cultural, linguistic and socio-economic backgrounds (National
Foundation for the Improvement of Education, 1996).
It is worthwhile to consider some studies chronologically and in more detail.
Monk’s (1994) longitudinal study found a close correlation between student
achievement in science and teacher preparation in science. The Monk study
identified that the best predictor of student performance in science was teacher
participation in professional development programs. Parke and Coble (1997)
conducted a study in the United States on a small coherent group of teachers and
their students and were able to demonstrate a connection between professional
Page 30
development, teacher’s instruction, and student achievement. A statewide (Ohio)
systemic initiative in the United States was the context for a study connecting
professional development and student learning (Kahle, Veece, & Scantlebury, 2000),
in which analysis showed a positive relationship between the standards-based
professional development and students’ science achievement and attitudes, mediated
by teaching practices that were related to teacher participation in the professional
development. An extensive analysis (Wenglinsky, 2000) of the performance of
science students on the 1996 American National Assessment of Education Progress,
found that student scores tended to be higher where their science teacher had
undertaken significant professional development. Likewise, Fishman, Marx, Best and
Tal (2003), demonstrated in their study conducted in the United States, that as a
result of professional development, teachers reported an increase in their confidence
in being able to support student learning, and, an evaluation of student learning
showed that there was a statistically significant improvement. Further support comes
from an analysis of Columbia’s Summer School for science teachers (Wenglinsky &
Silverstein, 2007), which led them to describe substantial evidence that professional
development programs for science teachers can significantly improve student
achievement in science as well as increase their student’s interest.
As pointed out by Hewson (2007), in studies where a positive effect on
student achievement can be demonstrated, much of the professional development
provided to teachers encompassed a range of strategies and had several
commendable characteristics. There were intensive sessions where teachers had the
opportunity to build knowledge and explore implications for teaching, followed by
opportunities to utilize these approaches in their teaching, with interspersed
reflective sessions to discuss aspects of implementation encountered in the specific
circumstances of their classrooms.
These studies lead to the conclusion that of the many steps needed to improve
student outcomes in science, none is more important than the provision of well-
formulated and sustained professional development programs for science teachers.
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2.8 WHAT MAKES FOR EFFECTIVE PROFESSIONAL DEVELOPMENT
The Professional Development Project of the National Institute for Science
Education in the United States explored whether the science, mathematics, and
professional development communities shared a common understanding of what
effective professional learning experiences look like, and how teacher development
should be nurtured (Loucks-Horsley, Styles & Hewson, 1996). They examined a
variety of standards and related materials in which they noted a great deal of
consensus. Despite addressing the question from separate perspectives and
disciplines, the different materials they reviewed largely reflected a common vision
of effective professional development. According to that shared vision, the best
professional development experiences for science educators included the following
seven principles (Loucks-Horsley et al., 1996, pp. 1-4):
1. They are driven by a clear, well-defined image of effective classroom
learning and teaching.
2. They provide teachers with opportunities to develop knowledge and
skills and broaden their teaching approaches, so they can create better
learning opportunities for students.
3. They use instructional methods to promote learning for adults which
mirror the methods to be used with students.
4. They build or strengthen the learning community of science and
mathematics teachers.
5. They prepare and support teachers to serve in leadership roles if they are
inclined to do so.
6. They consciously provide links to other parts of the educational system.
7. They include continuous review of the professional development
programs.
The professional development team of the National Institute for Science
Education went on to explore the nature of professional development practice
through a process of collaborative reflection with five accomplished professional
developers in science and mathematics, over the period of a year (Loucks-Horsley,
Hewson, Love & Stiles, 1998). They agreed that the practice of professional
development is a process of design. Professional developers have outcomes which
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they wish to achieve, impacted upon by the particular context (group of teachers and
circumstances) unique to the professional development program. This necessitates
that their professional development design matches the desired outcomes to the
context, probably requiring compromises in order to maximise desirable outcomes.
One important way that Loucks-Horsley et al., (1998) identified to help ensure
lasting reform is to involve teachers from the very beginning so the innovations can
develop from within the classroom. Such an approach would help teachers to adapt
new ideas to their own circumstances and could thus significantly increase the
impact of reform.
The most recent version of this design framework (Loucks-Horsley et al,
2003) has several major elements. There is a generic planning process where the
professional development program developers progressively input their knowledge
and expertise into the steps of the process. Subsequent to implementation of the
program, there is feedback from the reflective evaluation of the project on the
processes and on the various inputs to the project. Thus, this is a dynamic
framework.
The relationship between professional development programs and science
teachers’ practice was also explored by Fishman et al, (2003). From their research,
they developed a model of teacher learning. As with Loucks-Horsley et al. (2003),
they considered teacher professional development to be a process of design, where
those undertaking the professional development necessarily consider a range of
inputs to enable the design of an effective professional development program.
Although there is much in common between the Fishman and the Loucks-
Horsley design frameworks, by focusing explicitly on teacher practice as an outcome
of professional development programs, Fishman et al. (2003) have gone beyond
Loucks-Horsley et al. (2003). Fishman et al. considered teacher learning to be the
primary criterion for determining the effectiveness of a professional development
program. In addition, Fishman adopted the viewpoint of Richardson (1996), that
there needs to be consideration of the way in which the enactment of teachers’
knowledge, beliefs and attitudes influences student learning and consequently,
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student performance. They also recognised that student learning influences teacher
learning, and that the curriculum influences the choice of professional development
activities. Fishman et al’s study is a valuable framework in that it emphasises the
importance of the influence of teacher learning through professional development on
both classroom practice and student learning. In addition, it highlights the various
important aspects of professional development that need to be considered in the
design and evaluation of professional development programs.
In another important study of over 1000 mathematics and science teachers,
Garet et al. (2001) undertook a national evaluation of the Eisenhower Professional
Development Program, a program aimed at improving the teaching and learning of all
students by providing teachers with high quality, sustained, and intensive professional
development opportunities. Garet et al. compared the effects of a number of
characteristics of professional development and provided empirical support for ‘best
practice’ addressed in much of the literature on professional development. Their study
confirmed that good professional development does change teacher practices, and
teacher perception of their subject. Sustained and intensive professional development,
focused on academic content with opportunities for hands-on, active learning, and
coherently related to practices in schools, is what is reported as being most effective by
teachers.
Although these studies present a common vision of the best professional
development experiences for science educators, and an agreed position that the practice
of professional development is a process of design aimed at achieving identified
outcomes within a particular context, there is no specific recommendation in any of the
studies regarding the ideal amount of professional development and over what period it
should be implemented.
2.9 BIOTECHNOLOGY PROFESSIONAL DEVELOPMENT
An analysis of the literature thus suggests that biotechnology professional
development needs to include the following essential design components:
1. Instruction in fundamental content and concepts (Garet et al., 2001).
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2. Modelling of the teaching of biotechnology through the use of
exploration, concept development and application, and skills
development (Garet et al., 2001).
3. Guided discussion in underlying conflicts that address the socio-
scientific aspects of biotechnology (Bryce & Gray, 2004; Gray & Bryce,
2006).
4. Instruction in effective pedagogic strategies for improved classroom
learning (Gray & Bryce, 2006).
5. A means of reflective practice (Fetters, Czerniak, Fish & Shawberry, 2002;
Fishman, et al., 2003; Loucks-Horsley, et al., 2003, Nasseh, 1996).
In designing any biotechnology professional development activities, a key
component requiring consideration is the availability of educational resources that
are required to support meaningful student engagement with the identified
biotechnology contexts and learning experiences. Biotechnology resources
essentially fall into two broad categories- information and equipment/consumables.
A review by France and Bolstead (2004) identified a wealth of biotechnology
information resources, including textbooks, laboratory practical protocols and web
based resources provided by government departments and individuals from both the
education and biotechnology communities, though Dawson and Schibeci (2003)
believe that further curriculum materials similar to Biotechnology Online
(Biotechnology Australia, 2005) need to be developed and implemented in schools.
2.10 SUMMARY AND THEORETICAL FRAMEWORK
In concluding the literature review, a summary of the major literature
informing this research and an emerging theoretical framework are provided.
The studies reviewed acknowledge that the ultimate aim of teacher
professional development programs in science is to effect changes in teacher practice
to improve students’ science learning (Hewson, 2007). The professional
development in science frameworks studied as part of this review included studies of
programs that provide professional development to teachers of science, the
classroom practices that result from teacher participation in these programs, and the
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effects on the students who experience these classroom practices. Together, they
have provided complementary perspectives on teacher professional development,
which serve to highlight the many components that make up the complex processes
that are an intrinsic and important part of any teacher professional development in
science program.
With regard to the professional development programs reviewed in this
literature review, the research is largely descriptive, focusing on project design.
Fishman et al., (2003) were the only researchers who focused on program activities.
The major studies were primarily concerned with the effects of teacher professional
development programs on teacher practice (Bell & Gilbert, 1996; Fishman et al.
2003; Loucks-Horsley et al. 1998; Loucks-Horsley et al. 2003), with the research
being both descriptive and evaluative, grounded in teacher knowledge and beliefs,
teaching methodologies and teacher learning. Not surprisingly, these studies provide
a significantly clearer picture of the participating teachers and their teaching, than
they do of what is learned by the teachers as a result of participating in science
professional development programs. Other studies focused on students, and sought to
link classroom practice to student performance as outcomes determined by scores on
achievement tests (Huffman, Thomas & Lawrenz, 2003; Wenglinsky, 2000;
Wenglinsky & Silverstein, 2007). With respect to professional development program
planning, no studies systematically used the comprehensive professional
development design framework outlined by Lourks-Horsley et al. (2003) which was
derived from consideration of the practice of professional developers. Only one study
(Huffman et al. 2003) explicitly used any components of this framework.
In the reviewed literature, little explicit reference was made of the link
between curriculum change and professional development. However, curriculum
change was a factor impacting on both the three schools in this study and the
requirement for teacher professional development, thus it has been implicitly
considered.
Most of the teachers participating in the reviewed studies implicitly accepted
that aspects of their teaching were problematic in the context of the constraints of
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their classrooms and schools, and were prepared to incorporate new activities into
their teaching in order to develop their classroom practice. In addition, the teachers
acknowledged experiencing social development through collaboration with their
peers and mentors, and demonstrated that without continuing support gained through
collaboration, they were unlikely to make major changes to their teaching practices,
particularly if these changes impacted on their core professional beliefs (Bell &
Gilbert, 1996). Finally, despite the proposition of the importance placed on the
interaction involving teachers, their classroom practice and student performance, this
interaction was essentially ignored in the context of professional development
programs.
It is not surprising that there are extensive variations across studies of teacher
professional development in science, given that the effects on teachers and students
are complex, and that the limited availability of resources to devote to the studies
results in compromise and trade-offs. Hence, a broad array of complementary
research and data collection methods needs synthesis to provide an accurate, overall
picture of the field. Although existing studies encompassing a variety of approaches
have laid a substantive platform, they also illustrate the need for many more studies
of teacher professional development in science, to complete the picture.
The literature review has identified that a change in the science curriculum is
occurring, and that the implementation of this change presents both educators and
researchers with significant challenges. Teachers cannot engage their students if they
do not have sufficient knowledge, pedagogy and skills themselves, leading to the
recognition that there is the need for science teachers to be enabled to confidently
and competently teach contemporary science such as biotechnology. In this regard it
becomes necessary to consider both the teachers who are experiencing professional
development and the professional development programs that they are undertaking.
Shulman (1999) noted that the distinguishing feature of a teacher is the ability
to transform subject matter into classroom actions which support and enhance
learning. This capacity is described by Shulman as pedagogical content knowledge
(PCK). If the curriculum content changes, then the teacher’s pedagogical content
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knowledge, classroom actions and practices will also need to change. Currently,
there is a need for significant reform of continuing professional development in
science, as existing professional development does not adequately address the need
to change classroom practices (Gray & Bryce, 2006; Lewis, 2006). The case for
reform is supported by Wenglinsky and Silverstein (2007), who noted that of the
many steps needed to improve science education, none is more important than
improving teacher education through the development and dissemination of
empirically verified professional development programs for science teachers.
The literature (Fishman et al., 2003; Garet et al., 2001; Gray & Bryce, 2006;
Loucks-Horsley et al., 2003; NAS, 1996) has revealed aspects of professional
development that need to be considered in the design and implementation of an
‘ideal’ professional development program for science educators. According to the
literature, the ideal program has twelve key components. It is:
1. Specifically Designed- Designed to meet identified educational needs, in
a context where there is a well-defined image of effective learning and
teaching.
2. Collaborative- Developed and implemented through the collaboration of
professional development providers and educators thereby recognising
and valuing both the ‘expert’s’ input and the professional contribution of
the educators.
3. Content Appropriate- Develops conceptual knowledge, practical skills
and pedagogical content knowledge.
4. Learner-Centred- Recognises that teacher learning should parallel
student learning.
5. Active- Values and encourages continuing involvement of the
participants.
6. Challenging- Provides opportunities for teachers to confront and examine
their beliefs about the nature of science, in light of new paradigms and
philosophies.
7. Communal- Stimulates and supports new partnerships, networks and
learning communities among participating educators and scientists.
8. Supportive- Prepares teachers to serve in leadership roles.
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9. Reviewed- Ensures that evaluation is a continuous process that is used to
improve the program.
10. Guided- Has a charismatic person or group providing strong leadership.
11. Supported- Encouraged and supported by school districts and school
administrators.
12. Integrated- Links to other parts of the educational system.
In the past, many innovative projects have not been successful because
teachers fail to implement the content as intended by the professional developer(s).
Van Driel et al. (2001) have concluded that this can often be attributed to their being
delivered through a traditional top-down approach which has failed to acknowledge
the teachers’ existing knowledge, beliefs and attitudes. In addition, they have not
taken account of the students and the culture in which the reform is to be embedded
(Tobin & Dawson, 1992).
A fundamental consideration in implementing professional development is
that it brings about change, and teachers need to be supported as they progress
through stages of interest and commitment as a result of this change. CBAM is a well
documented theoretical model of change that is useful in describing, explaining and
predicting probable teacher behaviours in this process of change. CBAM can be used
to design experiences for the needs of participants at any given time.
Studies into the characteristics of effective professional development for
science educators have determined that the practice of professional development is a
process of design based on distinct identified principles. A biotechnology
professional development framework including additional essential design
components is proposed as having emerged from the current literature.
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Chapter 3 Research Design
3.1 INTRODUCTION
This chapter outlines the research design chosen to undertake this study and
discusses the methods used to collect data from identified Queensland educators
(teachers and laboratory technicians) who had previously engaged in biotechnology
professional development over a five year period (2003 - 2007).
The aim of the research study was to identify effective biotechnology
professional development strategies using the Queensland situation as a case study,
and use them to propose a biotechnology PD program. In order to achieve this aim,
each of the intervention PD programs that were identified was mapped against the
theory outlining effective professional development as presented in Chapter 2. An
alternative would have been to have used the theoretical framework and identified
those practices which were theoretically sound, and determine how they were
developed. However, this alternative may have presented a problem through the
potential to introduce bias, as this would to a large extent have been a self-critique as
the researcher developed and delivered many of the professional development
sessions.
As indicated in Chapter 1, the study had three purposes, and seven research
questions:
P1. To document the recent evolution of modern biotechnology education in
schools as part of the changing nature of science education.
RQ1. How have current teacher professional development processes
been cultivated, to support the integration of biotechnology into
classroom practice?
P2. To examine the process used by secondary schools to adopt and
implement a new science curriculum – modern biotechnology.
RQ2. How were teachers influenced to adopt the new curriculum?
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RQ3. How did teachers actually implement the new curriculum?
RQ4. How did concerns raised by teachers, change over time as they
incorporated biotechnology into their classrooms?
RQ5. What factors were related to changes in the patterns of teacher
concerns and use of the new curriculum?
P3. To propose an evidence based professional development model for
biotechnology education for science teachers.
RQ6. Why is a biotechnology professional development model
necessary?
RQ7. What key components are required in a biotechnology
professional development model?
This study was guided by the belief that the individuals involved with the
biotechnology professional development were people who had feelings, values,
needs, and purposes that affected their participation in any activities (Elbaz, 1981).
The choice of a case study design allowed an intensive, in-depth examination of an
individual’s adoption and implementation processes and discovered the
characteristics of those processes (Sanders, 1981). This included examining and
understanding teachers’ views of these processes (Elbaz, 1981). Multiple sources of
data and multiple methods for gathering data were used to guard against bias and to
improve the trustworthiness of the study (Merriam, 1988).
The chapter proceeds with an overview of the case study research
methodology and methods, including the selection of participants, data sources
(document content analysis, interviews and focus groups), data analysis and
limitations of the methodology. The chapter concludes with the ethical
considerations.
3.2 CASE STUDY RESEARCH METHODOLOGY
Case studies are a form of qualitative descriptive research which play an
important role in educational research (Mertens, 2005). A case study is a type of
ethnography which “is an in depth exploration of a bounded system (e.g., an activity,
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event, process, or individuals) based on extensive data collection” (Creswell, 2005,
p. 439). Case-study research employs intensive description and analysis of a
phenomenon or social unit (Merriam, 2002) and examines the relationships of all
variables in a situation, allowing as near complete understanding of the situation as
possible (Palmquist, 2005). Although case studies can reveal richness, depth and
diversity for a particular context, it cannot be assumed that a small number of case
studies will be representative of a given population. However, recurring themes
emerging from a number of case studies exploring the same phenomenon can lead to
confidence in the data.
In this research study, a case-study design as outlined by Yin (2003) was
used to generate data from anecdotal records, teacher interviews, and focus group
dialogue, in order to explore issues pertaining to biotechnology education in schools
and the accompanying skill improvement professional development workshops, with
the aim of proposing an effective professional development model for contemporary
science education.
Yin (2003) identified three types of case studies: exploratory, explanatory,
and descriptive. An exploratory research design tries to precisely define the research
question and form hypotheses. In an exploratory case study, the collection of data
occurs before theories or specific research questions are formulated. Descriptive
research design goes a bit further and tries to describe different characteristics of a
phenomenon, using a theory to guide the collection of data. The explanatory research
design tries to explain a course of events and relate how things happened. According
to Yin (2003), this thesis represents explanatory research because it tries to answer
‘how’ questions. However, because existing literature about biotechnology
professional development is scarce, this research can also be classified as somewhat
exploratory.
To ensure methodological rigour, Yin (2003) recommends the following steps
in the design of a case study:
1. Develop the research questions. Yin (2003) suggests that "how" and
"why" questions are especially appropriate for case study research.
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“How” questions focus in on description and documentation (e.g. RQ1 –
RQ4), whereas “why” questions attempt to elicit explanation, theory and
model building (e.g. RQ6).
2. Identify the propositions (if any) for the study. Propositions help narrow
the focus of the study and are statements akin to hypotheses that state
why you think you might observe a specific behaviour or relationship.
All case studies may not lend themselves to the statement of
propositions, especially if they are exploratory. However, Yin (2003)
says the researcher should be able to state the purpose (in lieu of
propositions) of the study and the criteria by which an explanation was
judged successful.
3. Specify the unit of analysis. Specification of the case involves the
identification of the unit of analysis and establishment of the boundaries
as clearly as possible in terms of who is included, the geographic area,
and time for beginning and ending the case. Once the case has been
identified, the unit of analysis can then be described within the context
of the case. For this study the unit of analysis was the school, with the
study undertaking an identification of issues across three schools in
relation to the elements of the biotechnology professional development.
4. Establish the logic linking the data to the propositions. Yin (2003)
suggests that researchers attempt to describe how the data was used to
illuminate the purpose statements. He recommends use of a type of
time-series pattern-matching strategy in which patterns of data are
related to the theoretical propositions.
5. The criteria for interpretation of the findings should be explained. No
statistical tests are typically appropriate for use as a criterion for case
study decisions. Yin (2003) suggests that researchers use judgment to
identify "different patterns [that] are sufficiently contrasting" (p. 27).
Although the study adopted the research design of Yin (2003), the case study
had a retrospective component involving the previous professional development
experiences of the participants. In the context of social and educational research,
retrospective case studies are a valuable exploratory tool. The term refers to those
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studies which investigate possible cause-and-effect relationships by observing an
existing condition or state of affairs and searching back in time for plausible causal
factors (Cohen, Manion, & Morrison, 2000). In effect, researchers ask themselves
what factors seem to be associated with the existing condition or state of affairs. The
researcher is thus examining retrospectively the effects of an event or series of events
on a subsequent outcome, with a view to establishing a causal link between them.
Retrospective research, then, is a method of teasing out possible antecedents or
determinants of events that have happened and cannot, therefore, be engineered or
manipulated by the investigator (Cohen, Manion, & Morrison, 2000).
This study was designed as a single case study which used multiple
perspectives (schools A, B and C) to address the research questions and was not
designed as a comparative case study. The instruments used for data collection were
designed specifically to collect data that could identify barriers and critical success
factors that could be incorporated into a biotechnology professional development
framework, and were not designed to gather data which could be used to draw
comparisons between the school sites with respect to their implementation of
biotechnology education. However, the data collected as responses to some interview
questions and as aspects of discussion within the focus groups, do give rise to some
opportunities to compare and contrast the experiences of the schools.
3.3 METHODS
In this study, the focus was on a group of educators and their retrospective
development into modern biotechnology educators over a five year period (2003 -
2007). Their history of modern biotechnology professional development
experiences was documented, and within this history, the evolution of their skill
acquisition was explored. The initial focus of attention was to document the whole
professional development experience available via the analysis of the content of
relevant documents. This professional development experience encompassed a
variety of professional development events offered by a number of providers. An
exploration and examination of specific components of their professional
development experiences then followed, via the techniques of individual and focus
group interviews.
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3.3.1 Participants
Three schools were selected to contribute as case studies. The contributing
schools included a large inner city secondary school (school A) located in the state’s
capital city; a large secondary school (school B) located in the state’s second largest
city; and one large regional city secondary school (school C). These schools were
selected on the basis that their staff had attended at least one biotechnology
professional development workshop (emphasizing the acquisition of practical skills)
during the time period studied, and had attempted the implementation of laboratory
learning experiences gained from the professional development.
Individual participants were purposefully selected from these schools, with a
total of 11 individuals from the selected schools accepting an invitation to participate
in the interview and focus group phases of the study. Data gathering continued until
it was determined that the database was saturated, that is, further data did not provide
any new information or insights for the developing categories for analysis and
interpretation (Creswell, 2005). At this point, no further participants were
interviewed.
Selected individuals had combinations of the following characteristics:
1. Was a practicing school science teacher (middle or senior school)
2. Was a practicing laboratory technician within a secondary school
3. Had participated in one or more of the following modern biotechnology
professional development workshops that were each conducted as stand-
alone 1½ hour sessions within the context of a 1 or 2 whole day program:
a. DNA extraction – plant, animal, yeast, bacterial and/or plasmid.
b. Agarose gel electrophoresis – dyes and/or DNA
c. Restriction endonuclease digestion of DNA
d. Liquid column chromatography – dyes and/or protein
e. Polymerase chain reaction (PCR)
f. Bacterial transformation
g. Protein extraction
h. Polyacrylamide gel electrophoresis
k. Basic microbiology
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l. Bioremediation
m. Water quality testing
n. ELISA (enzyme-linked ImmunoSorbent assay)
o. Plant tissue culture
In order to invite qualified participants from the identified schools to
contribute, an e-mail was sent to selected individuals and followed-up by a phone
call. It was expected that the majority of individuals were not easily contactable by
phone during working hours; therefore e-mail was considered the more appropriate
form of initial contact. An appointment time was subsequently negotiated with those
individuals who elected to contribute to the study.
3.3.2 Data Sources
This case study drew upon four data sources: (1) documents from the public
domain (including web-pages, brochures and syllabus documents/work programs),
(2) one-on-one interviews with key educators who led the implementation of
biotechnology at each school site, (3) focus groups comprising educators (other than
the key educator) involved with biotechnology education and (4) units of teacher
planned work as corroborating evidence.
Documents selected for inclusion in this study were both paper based and
electronic (Internet) based. Despite all of the documents being accessed from the
public domain, they were carefully scrutinised and cross-checked with other
documents to ensure that they represented accurate data. The researcher did not infer
that the public availability of documents ensured their accuracy (Creswell, 2005). All
documents related to professional development opportunities for Queensland
teachers or laboratory technicians, or defined the context within which the
professional development was conducted.
Documents were selected that addressed the following considerations:
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1. They enabled an understanding to be gained of the context or domain of
biotechnology education and the role of the document within that context
or domain.
2. They described biotechnology professional development opportunities
that existed during the time frame of the study.
3. They provided information to support the redesign of biotechnology
professional development experiences to make them more effective.
Some documents that were selected for analysis incorporated references to
past events, meaning that the data were constantly presenting updated reports on the
phenomenon being studied. As a result, interest was not primarily in the immediate
impact of each document, instead the interest lay in the document’s context and
significance, as well as how each document helped to define the situation and clarify
meaning.
One-on-one interviews are particularly useful for acquiring the story behind a
participant’s experiences. The interviewer can pursue in-depth information around
the topic. Interviews may be useful as follow-up to certain respondents to
questionnaires, e.g., to further investigate their responses (McNamara, n.d.).
A blend of Patton’s (1987) General Interview Guide Approach and
Standardised, Open-ended Interview Approach was used to generate an interview
protocol. Patton’s general interview guide approach ensured that the same general
information was collected from each interviewee (see Appendix 1), thus providing
some focus within the interview, but the semi structured basis still allowed a degree
of freedom and adaptability in seeking insights from the interviewee. A characteristic
of this approach was that topics and issues to be covered in the interview were
specified in an outlined form in advance; the interviewer decided the sequence and
wording of questions in the course of the interview. The standardised, open-ended
interview aspect of the blend ensured that the same open-ended questions were asked
of all interviewees, facilitating faster interviews that were more easily analysed and
compared. Answering the same questions also increased the comparability of
responses as data were complete for each person on the topics addressed in the
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interview. Interviewees were encouraged to openly discuss their experiences in the
interviews.
The relative strengths of this blended interview protocol were that the outline
increased comprehensiveness of the data and made the data collection somewhat
systematic for each respondent. The general interview guide approach allowed
flexibility within the interview to explore different professional development
experiences, whilst the standardised, open-ended interview questions allowed the
researcher to target specific characteristics of particular experiences with consistency
between interviewees. Interviews were therefore fairly conversational and
situational.
For the purpose of this study, one teacher at each school was selected to be
part of the one-on-one interview process. The individual interviewed was the
principal teacher behind the school’s biotechnology program. This person was seen
as having the greatest insight into the school’s achievements and experiences and
therefore was potentially the richest source of data. In addition, the laboratory
technician at School C was interviewed because of her extensive experience within
her school district in training and supporting other laboratory technicians in
biotechnology education.
The interview data that were collected related to the educators’ perception of
professional development workshops he/she attended. These workshops were a
subset of the professional development experiences described through the document
content analysis phase of the study. The collection of individual educator data (see
Appendix 1) included background, experience and knowledge questions, and gave
interviewees the opportunity to express opinions, and feelings (Patton, 1990). This
was necessary to ensure the reliability of information as well as provide an
opportunity for participants to bring to light and to clarify any concerns (Creswell,
2005). Interviews were audio recorded as well as written notes being taken. The
interviews were conducted prior to the focus group interviews.
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Focus Group Interviews are both a financially and time efficient means to
collect information about issues (Marshall & Rossman, 1999), as they can facilitate
much discussion and group interaction that can lead to beneficial complementary
insights for the researcher. Possibilities are maximised for unanticipated but highly
pertinent matters being raised. (Hopkins 1993). Focus groups can be used to collect
shared understanding, as well as views from specific individuals (Creswell, 2005),
and are “… data rich, flexible, stimulating to respondents, recall aiding, and (are)
cumulative and elaborative” (Fontana & Frey, 1998, p. 365).
They are especially well suited to uncovering and documenting the “why”
behind opinions, and in obtaining much more depth and breadth of analysis from
participants than is available from individual data collection methods (Hesse-Biber
& Leavy, 2006; Krueger, 1994). It was anticipated that the focus group meetings
would expand into narratives in which stances were articulated, explored, and
sometimes challenged by other members of the focus group (Connelly & Clandinin,
1999).
Focus group sessions were conducted at school sites A and B, but not at
school site C due to its isolated geographical location, which made it difficult for the
researcher to visit the school at a time which was acceptable to all potential focus
group participants. At school site A, there were 6 focus group participants, and at
school site B there were 3 participants. Both of these groups also included the
principal teacher who was the subject of the one-on-one interview. This
consideration was deliberate. Initially it was considered to exclude the principal
teacher from the focus group to free the focus group teachers of any influence or
perceived constraints imposed by the presence of the principal teacher. However,
upon initial discussions with staff at schools A and B it was discovered that there
was no opposition from staff to the inclusion of the principal teacher in the focus
groups. The focus groups met after the one-on-one interviews, and it was anticipated
that participants’ stories would provide a different perspective on biotechnology
professional development and teaching to that which was gained from the principal
teacher interviews.
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The focus group discussions were structured by first making sure that all
participants were made aware that the purpose of the focus group was to discuss both
positive and negative experiences encountered through undertaking biotechnology
professional development. Prior to arrival at the sessions, participants were asked to
think about all of their positive and negative experiences with biotechnology
professional development, and to make a mental note of their “top three” in each
category to bring to the meeting. This process ensured that before the focus group
discussion began, the participants were prepared with a range of their own
independent experiences to share with the group.
A questioning route/set of steps was developed and implemented for the
focus group interviews in order to impose some structure on the sessions and to limit
the possibility of the discussion heading off on unrelated tangents. Firstly, the
participants were asked to nominate and describe their most significant positive
biotechnology professional development experience and how this experience assisted
in their implementation of learning experiences in their classroom. This process was
conducted in a manner that was mindful of ensuring that all participants had the
opportunity to contribute and also limited the potential for any individual to
dominate the discussion. Detailed discussion was facilitated on each positive
experience nominated.
The same process was then followed for negative experiences encountered by
the focus group participants. The final stage of the focus group sessions was
unstructured open-ended discussion to allow the participants to raise any other issues
related to their biotechnology professional development experiences and the
enablers/barriers to their classroom implementation of learning experiences. The
focus group sessions were audio taped and written notes were also taken.
3.3.3 Data Analysis
In order to answer the research questions, the data analysis was designed to
uncover the content of the documents and the content, characteristics and
organisational aspects of the professional development experiences. Table 3.1
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presents the research questions aligned with the data sources and data collection
methods.
The researcher was a prominent participant in the development of many
biotechnology experiences and as a consequence, was familiar with the majority of
documents and professional development events. As a result, the researcher was
“involved” with the concepts, relevance, processual development of the experiences,
and the internal logic of many of the documents. Coding and descriptions used in the
analysis were therefore straight forward, but were subjected to reviews and rechecks
to ensure oversights did not occur and that missing or underrepresented categories
were detected and adjustments made (Altheide, 1996).
TABLE 3.1
Alignment of Data Sources, Data Collection Methods and Research Questions.
Data Source Method Used Research Question
Answered
Intra-organisational Documents
Inter-organisational Documents
Classroom Teacher
Laboratory Technician
Work Program
Unit of Work
Document Analysis
Document Analysis
Interview, Focus Group
Interview, Focus Group
Document Analysis
Document Analysis
1, 2, 6, 7
1, 2, 6, 7
1, 2, 3, 4, 5, 6, 7
1, 3, 4, 5, 6, 7
3, 6, 7
3, 6, 7
Document analysis refers to an integrated and conceptually informed method,
procedure, and technique for locating, identifying, retrieving, and analysing
documents. It can be defined as any symbolic representation that can be recorded or
retrieved for analysis (Altheide, 1996). Relevance, significance and meaning are
thus illuminated. This study was an analysis of the content of relevant documents,
where the process of conducting the document analysis aligned with Altheide’s
(1996) notion of Ethnographic Content Analysis, and Salminen, Lyytikainen and
Tiitinen’s (1999) Process Modelling- the approach to the document analysis
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generally flowed from the original idea about the topic to materials relating to the
setting or context.
The process of document content and artifact analysis encompassed several
parts: finding and gaining access to the documents, collecting data from them,
organising the data, and analysing the data. The progression from data collection to
interpretation was reflexive and iterative. The analysis of the documents proceeded
using a qualitatively orientated research approach, with the documents being allowed
to reveal their secrets in an inductive or grounded way. This approach preserved the
processual character of the professional development experiences.
Interview analysis was based on the blended interview protocol for the one-on-
one interviews and the questioning route for the focus group discussions. These were
designed to enable the collection of data on professional development workshop
effectiveness across six main areas:
1. Increasing the educators’ content knowledge
2. Positively impacting on the educators’ pedagogical practice
3. Facilitating links between the workshop and the science curriculum
4. Impacting on the educators’ attitudes towards modern biotechnology
5. Encouraging formation of networks with scientists working in industry
settings, or other science educators
6. Instruction in the use of specialised equipment and technology.
Large amounts of spoken words were audio recorded and needed to be
converted into the written form. Accurate transcriptions were made of all interviews
and focus group discussions. Pauses in a response were noted as these may have
indicated an inability or reluctance to answer a question. Large margins were left on
transcription documents to allow for coding notes during initial analysis. Although
the interviewees were offered the opportunity to view transcripts and check the
accuracy of what was recorded and reported on, no-one accepted the invitation.
The analysis of the interviews and focus group interview data involved re-
storying, which is (Creswell, 2005):
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…the process in which the researcher gathers the stories and analyses them for
key elements of the story (e.g. time, place, plot and scene) and then rewrites the
story to place it in a chronological sequence. (p. 480)
Extensive reading, sorting, searching through materials, comparing within
categories, coding, adding key words and concepts, and finally writing mini-
summaries of the categories led to understanding, and allowed the themes to emerge.
The goal was to understand the processes and character of the professional
development experiences, and to derive meaning from them. In particular to gain a
deep understanding and insight into participants’ lived experiences. Emerging
categories included characteristics of social interaction (e.g. time, place, and manner
of activity), which led to questions such as: How was the professional development
done? Who did the professional development? What was its rationale? By answering
these questions the “dramaturgical character” (Goffman, 1959) of the professional
development experiences was captured. That is, the process and meaning of the
interaction.
3.4 RESEARCH LIMITATIONS
Although educational research can positively contribute to the decision–
making processes that impact on programming and the curriculum, there are
inevitably issues which arise out of research studies that can limit their ability to
answer all of the questions (Hiebert, 2003). There were limitations identified in this
research study and these are acknowledged by the researcher.
First, as has been reported in Sections 1.1.1 and 3.3.3, the researcher was a
prominent participant in the development of many of the biotechnology experiences
reported on by the participants. As a result, the researcher was “involved” and ran
the risk of data distortion (Creswell, 2005) and thereby introducing bias into the
study. In order to overcome this potential, the researcher did not undertake any direct
analysis of the biotechnology programs, rather, analysing the data collected from the
participants who engaged in these programs. The limiting of data analysis to the use
of data that were actually collected as part of this study, the supporting of researcher
statements by the use of direct quotes from educator participants, and the openness of
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the results to scrutiny by participants and research supervisors have also countered
the opportunity for the introduction of personal bias.
Second, as the three schools selected as case studies represented success
stories, the results from these case studies were not necessarily indicative of the
biotechnology professional development experiences of all Queensland secondary
schools and therefore cannot be taken as indicating that all of the barriers and critical
success factors to the uptake of biotechnology education have been considered.
However, as the represented schools have extensive combined professional
development experiences over the time period studied, it is anticipated that the data
collected are capable of informing theoretical perspectives.
Third, owing to time constraints, information was sought and recorded at a
single interview and/or focus group session. It was not possible to provide
participants with additional structured opportunities to share further memories,
thereby potentially casting doubt on the completeness of the data. However, since the
data collection process was conducted as quite exhaustive interviews and
discussions, significant opportunity existed to collect sufficient data, and participants
were invited to submit further data by email or telephone if they felt it could add to
the research findings. No participants took up this invitation.
Fourth, the CBAM model traditionally involves a questionnaire which is
administered at several points during a longitudinal study. This study was not
longitudinal and did not employ a questionnaire. Instead, the CBAM constructs were
considered as themes. In this way, CBAM was only a useful tool for conceptualising
the individual position of each of the participants on the level of use, and stage of
concern continuums. In addition, the successful nature of the schools selected with
respect to biotechnology education meant that concerns were not as significant as
they may have been at other school sites.
Finally, a key limitation of retrospective case study design lies within the
cause and effect relationship being investigated. The researcher cannot know
for certain whether the causative relationship between professional development
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and the current level of classroom implementation was identified. It may be that no
single factor was the cause, or a particular outcome may have resulted from different
causes on different occasions. With this research design, whenever a relationship is
discovered, there is the problem of deciding which is the cause and which the effect;
the possibility of reverse causation has to be considered.
3.5 ETHICS
This research study was deemed by Queensland University of Technology
University Human Research Ethics Committee (UHREC) as meeting the
requirements of the National Statement on Ethical Conduct in Human Research and
was awarded ethical clearance. The researcher fully informed the participants of the
exact purpose of the study and the methods that were to be employed. The
interviewees were informed that their participation in the study was voluntary,
anonymous, and able to be withdrawn without penalty at any time. All participants
were given contacts for the researcher and the principal supervisor.
3.6 SUMMARY
This chapter outlined the research design chosen to undertake the study and
proceeded with an overview of the retrospective case study research methodology
and methods, including the selection of participants, data sources (document content
analysis, interviews and focus groups) and data analysis. The chapter outlined the
three phases involved in this research study- the documentation of the biotechnology
professional development, the conduct of interviews and focus groups to obtain
evaluative data, and finally, the analysis of the collected data. The chapter concluded
with a discussion of the limitations of the research and the ethical considerations.
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Chapter 4 Results
4.1 PREAMBLE
This chapter reports on the results of the research described in the preceding
chapters of the thesis. This retrospective study has focused on a group of educators
(teachers and laboratory technicians) from three separate schools, and their
development into modern biotechnology educators through their participation in
professional development events over a five year period (2003 - 2007).
First, through the analysis of the content of documents, the whole
biotechnology education experience that has been available to educators within the
nominated time-frame is documented. Second, this analysis is followed by the results
from individual interviews and focus group meetings which explore and evaluate the
biotechnology education experience and, within this history, the evolution of
educator skill acquisition through professional development. A critical examination
then takes place to determine how the educators were influenced to adopt and
implement the new curriculum and how their concerns changed over time in
response to a range of impacting factors. Third, the key components of a
biotechnology professional development model are identified from the literature and
the stories of the participants.
This chapter addresses Research Questions 1-5 and Research Question 7:
RQ1. How have current teacher professional development processes
been cultivated to support the integration of biotechnology into
classroom practice?
RQ2. How were teachers influenced to adopt the new curriculum?
RQ3. How did teachers actually implement the new curriculum?
RQ4. How did concerns raised by teachers, change over time as they
incorporated biotechnology into their classrooms?
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RQ5. What factors were related to changes in the patterns of teacher
concerns and use of the new curriculum?
RQ7. What key components are required in a biotechnology
professional development model?
The remaining research question (RQ6), which relates to the necessity for
biotechnology professional development, is considered in Chapter 5 of this thesis.
4.2 CONTEXT
This study is located in Queensland, Australia. Queensland has a unique
system of externally moderated school-based assessment for senior subjects. In
Queensland, senior students are taught and assessed by their schools; they do not
undertake any subject-specific public exams - unlike students in other Australian
states and territories. Currently, what is taught in classrooms in Queensland is
determined by the Queensland Studies Authority (QSA). The Queensland Studies
Authority is a statutory body responsible for the provision of a range of services and
materials relating to syllabuses, testing, assessment, moderation, certification,
accreditation, vocational education, tertiary entrance and research (Queensland
Studies Authority, 2007).
QSA syllabuses set the criteria and standards that teachers use to make
judgments about student achievements. Before schools offer any subject, they must
submit programs of study (Work Programs) to the QSA, outlining how the course
will be delivered and assessed, based on the school’s interpretation of the syllabus.
These programs are reviewed to ensure they meet syllabus requirements, and indicate
that there will be sufficient scope and depth of student learning to reflect the general
objectives and meet the exit criteria and standards. A rigorous quality-assurance
framework ensures reliable and comparable assessment of student achievement
across the state.
One of the QSA's core functions is to facilitate the transition to tertiary places
for Year 12 students. The QSA ranks eligible Year 12 students for tertiary selection
and issues Tertiary Entrance Statements. The decisions are made on the basis of
school based assessment and a common core skills test taken by students. Each
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student’s performance is calculated, and an Overall Position (OP) score assigned to
that person. An OP is a student's statewide rank based on overall achievement in
QSA-approved subjects and on their achievement in the Queensland Core Skills
(QCS) Test. The QCS Test does not test particular knowledge of specific Year 12
subjects. It tests the Common Curriculum Elements, a set of generic skills identified
in the Queensland senior curriculum. It indicates how well the student has done in
comparison to all other OP-eligible students in Queensland. A student's individual
QCS Test result is not used on its own in the calculation of their OP - instead, group
results are used as part of a statistical scaling process.
Of relevance to biotechnology education is the QSA’s provision of Senior
syllabuses for Biology, Chemistry, Multi-Strand Science (a broad-based general
science subject) and Science 21 (an inter-disciplinary science subject) as they each
present teachers with opportunities for the inclusion of theoretical and practical
biotechnology learning experiences. In particular, the general objectives of the
Biology syllabus present a significant opportunity for students to engage with
contemporary science. These general objectives are categorised as:
• Understanding biology- This objective provides opportunities for students
to demonstrate a knowledge and understanding of the key concepts and
ideas of biology.
• Investigating biology- This objective provides opportunities for students
collectively and individually to access, collect, derive and interpret
quantitative and qualitative biological data. Students are required to
critically and creatively question, observe, construct ideas, make choices,
analyse data, make decisions and solve problems to demonstrate the
processes involved in biological investigation. An assessable component
within this general objective is the Extended Experimental Investigation,
where students undertake laboratory-based or fieldwork experiments to
answer an open-ended practical research question.
• Evaluating biological issues- This objective aims to develop in students
the ability to embrace current biological understandings and ideas to
evaluate the effects of their application on present-day and future society.
• Attitudes and values- The focus of this objective is for students to
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develop heightened levels of sensitivity to the implications of Biology for
individuals and groups in society.
The three schools (A, B and C) that participated in this study were
government schools in the state of Queensland, Australia, and included one large
inner city secondary school (school A), one large outer metropolitan secondary
school (school B) and one large regional city secondary school (school C). These
schools were selected as they represented a range of educational contexts and their
staff had attended at least one biotechnology professional development workshop
during the time period studied and they had attempted implementation of learning
experiences that they had gained from the professional development.
4.3 RECENT EVOLUTION OF MODERN BIOTECHNOLOGY EDUCATION
This section provides an identification of the policies and resources that
prevailed when biotechnology was emerging as an important aspect of the
curriculum, and outlines how these have impacted on the schools (A, B and C) that
were the subject of this study. The presented data deals with Research Question 1:
RQ1. How have current teacher professional development processes
been cultivated to support the integration of biotechnology into
classroom practice?
Document content analysis has enabled the identification of a range of events
and initiatives that have impacted on the evolution of biotechnology education, and
cultivated the need for professional development for educators. While this study is
primarily concerned with a five year period (2003-2007), consideration is given to a
limited period of time either side of this window where the extended time frame
sheds further light on the study. Fourteen impacting events and initiatives have been
identified through the document content analysis. These are listed in chronological
order.
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4.3.1 Discussion of Impacting Events and Mechanisms
Fourteen events and programs that have impacted the delivery of biotechnology
programs and contributed to professional development initiatives in science of relevance
to biotechnology are now discussed.
4.3.1.1 CSIRO Outreach Program
CSIRO (Commonwealth Scientific and Industrial Research Organisation)
has produced a range of biotechnology education resources since 1997 to assist
students and teachers to learn more about biotechnology (CSIRO, 2008; Streiner,
personal communication, 2008). In addition, the CSIRO Science Education
Centres, located in the capital city and a large regional city, have offered a number
of school workshops that have provided hands-on learning experiences in the area
of biotechnology (see Table 4.1). Biotechnology workshops were available at the
Centres and these workshops travelled to schools through an initiative titled ‘Lab
on Legs’.
Schools B and C had experienced CSIRO biotechnology practical
experiences at their schools and nominated that these were the first practical,
modern biotechnology activities that their students had engaged with. They
suggested that while they were worthwhile, they lacked the flexibility to be able to
be accessed when it suited the curriculum, and there was no professional
development component for teachers.
We were visited by the CSIRO program a few years ago. It was good, but it
was hard to get them to come when we needed them- when it fitted in with the
content of the unit we were teaching. That was the same with the BioBus
people. Plus, with the CSIRO one, the kids had to pay and we (the teachers)
got nothing out of it. (Tom, School B).
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TABLE 4.1:
CSIRO Workshops
Program Name
Activity Description
Grade Time(hrs)
Hands on
Debate CSIRO Centre
School Lab
Gene Technology
in Action
DNA Extraction &
Electrophoresis
8 - 10
1.5
11 - 12
2
Genetic
Engineering
Genetic
Transformation
11 - 12
2
4.3.1.2. Government policy: The Smart State Vision
The Smart State vision was established in 1998 by the Queensland
Government and was about using knowledge, creativity and innovation to maintain
prosperity and quality of life for all Queenslanders (Queensland Government, 2008).
Its intention was to position Queensland at the forefront of the global 'knowledge
economy' to become a regional leader in 'smart' industries, including biotechnology
and health research. It was also about Queensland having a skilled and diversified
economy, known for its ability to discover, develop and apply knowledge.
The Smart State Strategy, which arose from this initiative, had a strong focus
on strengthening the State’s educational foundations. The Queensland Government
recognised that education was one of the drivers which provided the building blocks
that supported innovation to build the physical and human capital of the State and
therefore was committed to improving general education standards by adopting
international best practice in education delivery (Department of the Premier and
Cabinet, 2006).
The Smart State Strategy gave rise to the Science State – Smart State
initiative (Spotlight on Science, 2003 – 2006) whose six-step action plan formed the
model for the development of the strategies used by the Queensland Biotechnology
Education Network. Schools A and C were both part of this network, and as such
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were impacted on indirectly by the Smart State vision. In addition, in successfully
applying for a 2006 Showcase Award for Excellence in Schools, School A outlined
their commitment to biotechnology education because of its importance to the Smart
State agenda.
4.3.1.3. Biotechnology Online
Biotechnology Online (Biotechnology Australia, 2005) is a resource
developed in 2001 which aimed to address the need for Australian secondary schools
to have access to balanced, factual, up-to-date information on biotechnology. It has
enabled schools to supplement their current educational resources with an online
resource that contains informational text, case studies, worksheets, online and off-
line activities for students, and advice to teachers to enable them to become familiar
with applications of modern biotechnology. The resource enables teachers and
students to understand the differing points of view on current practices, and the
ethical and moral questions that form a part of the present debate on biotechnology.
The Biotechnology Online School Resource is produced and maintained by
the multi-departmental Australian Government agency Biotechnology Australia and
has been designed to fit with Australian State and Territory Science curricula, with
cross-over into Studies of Society and the Environment to allow for broader
discussion of issues. The first version of Biotechnology Online was produced in
2001 in collaboration with curriculum-development bodies, science teachers and
state and federal education departments. This resource was subsequently updated in
2005.
Each of the three schools in this study used Biotechnology Online as both a
teaching tool and as a resource for students to access in order to research the ethical
concerns which arose out of applications of biotechnology. For example, Rob in
School A argued that the resource enabled students to go beyond the norm and
expand their horizons:
Biotechnology Online is a good resource for broadening horizons for what
biotech actually is. (Rob, School A).
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In addition, School A hosted a meeting in 2007 at which a diverse group of
experienced and pre-service teachers and teacher educators conducted a review for
Biotechnology Australia of the Biotechnology Online School Resource.
4.3.1.4 Technology, Maths and Science Centres of Excellence (TMSCE)
In 2001, the State Education Department established eight Technology,
Maths and Science Centres of Excellence in a range of primary and secondary school
sites throughout the state (Education Queensland, 2002). School sites were selected
where there was a particular focus on the curriculum areas of Mathematics and/or
Science, and on using the latest forms of technology as key learning tools. These
centres were places where students could enhance their interest and achievements in
technology, maths and science through an extensive array of programs and activities.
As sources of innovation and enrichment, the centres were intended to provide
opportunities for Queensland students and teachers to move to the forefront of
modern schooling and play a leading role in shaping science and maths education of
the future. The Centres ceased receiving funds in 2005 after a statewide independent
evaluation of their achievements indicated limited achievement of outcomes.
The aim of the centres was to improve student outcomes in technology, maths
and science and to capture students’ interests and imagination, particularly in the
middle years of schooling. The centres were intended to provide opportunities to:
• improve student performance in maths and science
• increase student participation rates
• extend students’ experience and expertise with the latest forms of
technology
• expand teachers’ knowledge base.
One of the TMSCEs provided funding in July 2002 and January 2003 that
enabled the development of practical biotechnology learning experiences and the
accompanying manuals. These resources were subsequently disseminated to a
number of schools, including Schools A, B and C, through professional
development. Ultimately, another State High School became a TMSCE and provided
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further professional development to all three schools as well as supporting Schools A
and C as members of the Queensland Biotechnology Education Network.
4.3.1.5 The Queensland Science Summit
In 2002, the roles of science and science education were discussed around the
state, leading to the Science Summit which was held in Brisbane and chaired by the
state’s Chief Scientist. Following that meeting, a Steering Committee comprising
experts in science, industry, education and government prepared a report that set out
key principles for a new approach to science education in Queensland which would
give students access to the opportunities provided by science and technology in the
modern world and the knowledge economy. That report was used as the basis for a
renewed vision for science education, Science State – Smart State (Queensland
Government, 2003).
This summit was important to the subject schools in that the renewed vision
for science which it initiated, helped to bring biotechnology education to the fore and
laid the basis for the opportunities in biotechnology education which were seized by
these schools.
4.3.1.6 BEU/ BEC
Initial discussions regarding funding to develop biotechnology education took
place with one of the TMSCEs in May 2002, with the first funding provided in July
2002. At that point, the fledgling project was known as the Biotechnology Education
Unit (BEU). Follow-up funding was provided by the same TMSCE in January 2003
to enable the development of practical biotechnology learning experiences and the
accompanying manuals. At that time, BEU underwent a name change to the
Biotechnology Education Centre (BEC).
In July 2003 the TMSCE that had provided the funding was split into 3 sites,
with each site assuming responsibility for one of each of the mathematics, science,
and technology components of the original TMSCE. The site of the Biotechnology
Education Centre assumed responsibility for the science component. Funding was
provided to fund a full time coordinator at this site and to cover ancillary costs. July
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2004 saw further funding granted for the coordinator. In December 2004, the site’s
Biotechnology Education Centre was recognised as a key component of the TMSCE
project in Queensland.
Additional funding was made available to BEC from the local City Council in
term 4, 2003 and in term 1, 2004. This funding was granted to enable business
scoping and infrastructure development to take place. BEC developed further
resources and provided professional development on biotechnology education to
schools, including Schools A, B and C.
4.3.1.7 Spotlight On Science
From the Science State - Smart State initiative, the Queensland Education
department developed a six-step action plan (Spotlight on Science) as part of a vision
for improving Queensland science education and enhancing community
understanding of the role science plays in everyday life (Queensland Government,
2003). It was designed to give Queensland students the science education and skills
needed for the twenty-first century. The action plan aimed to increase the scientific
literacy of Queenslanders, increase the number of Queensland students aspiring to
careers in science, and improve the overall quality of science education in the Smart
State.
A high-level task force was set up to implement this action plan, chaired by a
prominent science educator known as the Queensland Science Education
Ambassador. This broad-based task force included members from government,
industry, education providers, research organisations and teacher associations.
Through the task force, the Government established new approaches to bringing
together educators and other important community, industry and government sectors.
The action plan targeted students, teachers and the learning environment, and
sought to strengthen partnerships. To make students aware of the importance of
modern science to their future world, there was a determination to attract and retain
outstanding science educators at all levels.
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The task force oversaw an ambitious program of professional development
for science teachers, including Science Links programs and district forums. The State
Government established networks of educators to promote best practice in teaching
and instituted prestigious awards to recognise leaders in the field: Westfield
Premier’s Educational Scholarships, New Professional Scholarships, Premier’s
Smart State Teacher Excellence Scholarships, and Peter Doherty Awards for
Excellence in Science and Science Education. Two individuals at each of Schools A
and C were recipients of awards and Schools A and C both achieved Science Success
School Awards in recognition of their engagement with contemporary science
education (Department of Education, Training and the Arts, 2008).
The Queensland State Government allocated $14 million towards this
comprehensive vision for science education, which integrated existing initiatives and
developed new directions from 2003 - 2006.
4.3.1.8 Current Biology Syllabus
A Biology Senior Syllabus was launched in 2004, for general implementation
in 2005 and was amended in 2006. It replaced a Biological Science Senior Syllabus
(1998). As well as a revised structure for the General Objectives, the new Biology
Syllabus included subtle changes to the wording of the Rationale and Global Aim,
where references were made to future scenarios and emerging issues and their
relatedness to Biology. In addition, the Attitudes and Values General Objective also
had a subtle change in wording, to reflect concerns with implications of science
instead of concerns with impacts of science (Queensland Studies Authority, 2004).
The current Biology Syllabus has included the General Objective, Evaluating
Biological Issues. This objective aims to develop the ability in students to embrace
current biological understandings and ideas in order to be able to evaluate the effects
of their application on present-day and future society.
The previous Biological Science course structure was based on 9 Core Topics
which had a compulsory time allocation. One of these Core Topics- Genetics,
provided schools with a limited opportunity to replace traditional learning
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experiences with modern biotechnology based learning experiences. In this old
syllabus, once the compulsory time allocation for the Core Topics had been satisfied,
schools could then choose to spend the remainder of the course time on Elective
Topics (Queensland Board of Senior Secondary School Studies, 1998). This
presented an additional, albeit limited opportunity for schools to engage with
theoretical and practical based biotechnology learning experiences.
In the current Biology Syllabus, 6 Key Concepts have replaced the 9 Core
Topics and schools are encouraged to develop a course of study that reflects the
interconnectedness of these Key Concepts. Schools may choose to do this in a
variety of ways through the development of contextualised, thematic or problem-
based units. This flexibility in the current Syllabus in allowing schools to choose and
develop units that are relevant to students and use local resources, has opened up a
significant potential for schools to now engage with biotechnology education.
In addition, the current syllabus has appended a sample biotechnology unit
entitled Biotechnology – Fantastic New Technology or Certain Disaster? It is
suggested as a 30 hour unit, developed for use with a Year 12 class. The unit builds
upon knowledge previously developed in relevant Key Concepts and Key Ideas.
Each of the subject schools confirmed that they had increased the
biotechnology content of their Senior Biology course in line with the increased
opportunities presented by the 2004 Biology Senior Syllabus. In addition, Schools A
and C nominated that they had also incorporated some theoretical and practical based
biotechnology learning experiences into their Chemistry programs in anticipation of
greater flexibility being written into the Chemistry Syllabus that was being trialled at
the time of this study and which had a significant number of design similarities to the
Biology Syllabus.
4.3.1.9 Australian Biotechnology Education Network (ABEN)
The inaugural meeting of the Australian Biotechnology Education Network
took place on Thursday 30 September 2004, at Greenmount Beach Resort,
Coolangatta, Queensland (Schibeci, 2004a). At that meeting, ABEN was defined, its
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proposed role was outlined, and the potential positive outcomes for Australian
Biotechnology education were discussed. Guidelines for ABEN membership were
drawn up and a list of specific actions to be undertaken by each participant was
agreed upon. A proposal was put forward to seek funding from a variety of sources
to enable the concept to move forward. No funding was able to be secured and no
further meetings took place.
The concept of a Biotechnology Education Network was taken and used as a
basis for the formation of the Queensland Biotechnology Education Network of
which Schools A and C were members.
4.3.1.10 Queensland Biotechnology Education Network
The Queensland Biotechnology Education Network (QBEN) was formed in
February 2005 and operated until 2007. QBEN strongly supported the Spotlight on
Science initiative, and as such developed its strategies to align with Spotlight on
Science’s six-step action plan (Author Unknown, 2005). QBEN’s six-step action
plan was developed to:
1. Improve the scientific literacy of Queenslanders
2. Encourage more young people to aspire to careers in science
3. Improve the overall quality of science education in the Smart State.
Ten foundation schools were invited to join QBEN based on their
commitment to Biotechnology in the science curriculum and active involvement in
Professional Development for staff in this area of science. Two more schools
subsequently joined the network. As part of QBEN, these schools gained the ability
to network with like-minded educators, share ideas and grow together professionally.
Opportunities and information were freely shared throughout the network.
Geographically, this group of twelve schools covered the majority of the state. Each
school, as a member of QBEN, served as a resource to their local and wider district,
providing Professional Development activities and advice for schools wishing to
integrate biotechnology into the curriculum.
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The QBEN network originated with a structure of dependant support from a
Technology, Maths and Science Centre of Excellence. As schools identified with a
specific area of biotechnology, they sought additional expert assistance including
tertiary and industry links. This growth allowed the school to become independent
and to act as a resource for other schools in that area of interest. Areas of
specialisation included Plant Tissue Culture, Forensics, Molecular Biology,
Aquaculture and Biomedical Sciences This process was aimed at ensuring the
sustainability of the QBEN project.
QBEN was strongly focused on inspiring science- making it exciting,
fascinating and relevant. This began with inspiring the Science teachers of
Queensland. The prime activity of the network was hands-on professional
development supported by technical advice and resources. At that time, supported
biotechnology professional development was not readily available from any other
source in Queensland.
At the QBEN launch, an initial grant was pledged from Spotlight on Science,
with a further grant made in April 2005 from the Curriculum Strategy Branch
(Science) for equipment for the twelve ‘hub’ schools. This funding was shared
equitably among the schools, which included Schools A and C.
4.3.1.11 BioBus - The Travelling Biotechnology Exhibition
The BioBus was a mobile biotechnology exhibition travelling throughout
Queensland, visiting schools and communities from 2005 - 2007. It was another
Smart State initiative through which the Queensland Government demonstrated its
ongoing commitment to strengthening the State’s biotechnology industry. The
BioBus also helped to demystify some of the perceptions surrounding biotechnology
and ensure that Queensland communities better understood the significance of how
biotechnology discoveries could benefit all Queenslanders.
The BioBus primarily travelled to rural and regional Queensland areas to
enable students from schools all over Queensland to have the opportunity to
participate in classroom activities and to explore the range of interactive and
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informative exhibits. Both Schools B and C were visited on two occasions by the
BioBus.
4.3.1.12 Australian School Innovation in Science, Technology and Mathematics
The Australian School Innovation in Science, Technology and Mathematics
(ASISTM) Project commenced in 2005 and is part of the Australian Government's
Boosting Innovation, Science, Technology and Mathematics Teaching (BISTMT)
Programme. It has had a significant impact on both biotechnology resources and
professional development. This seven-year Project is aimed at identifying and funding
school cluster initiatives, with expected outcomes including the fostering and
development of innovation in schools, and promoting world class learning and teaching.
Three significant biotechnology projects have been funded in Queensland through this
initiative, with one of these projects based at School C and described on the ASISTM
(2008) website as:
A Science Experience for the New Millennium- conducted at School C’s
Biotechnology Education Centre with partner organisations the Australian
Institute of Marine Science, a local University and regional schools. This
project has transformed the traditional science classroom into an interactive
laboratory, and hosted numerous biotechnology professional development
sessions for teachers and laboratory technicians.
4.3.1.13 Biotech Babble
This free newsletter is published by a Biotechnology Education Consultant
and commenced as a monthly publication in 2006 and evolved into a quarterly
publication. It was conceived to inform, educate and support education professionals
(both teachers and laboratory technical staff) to ensure the provision of quality
biotechnology and microbiology learning experiences for students. It is emailed to a
mailing list of over 300 Queensland educators, as well as being available to
download at www.biotek.com.au. All of the participants in this study subscribed to
this publication and several mentioned that they appreciated the content of the
articles as the subject matter was not readily available in any current Biology text
book.
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I’ve received Babble since the first issue. There’s been some great ideas for
student pracs (practical activities) and the background notes have covered stuff
that’s not in our Biology textbook. (Tom, School B).
The technical notes have sometimes made experiments easier to prepare. (Joan,
School C).
4.3.1.14 Science Education Strategy
The Spotlight on Science action plan has been followed by the Science
Education Strategy 2006-2009. The major focus of the Science Education Strategy is
currently the provision of targeted high quality professional development for primary
and secondary teachers of science. This is being approached in four ways, one of
which is Working with University Partners, where six Science Centres of Innovation
and Professional Practice (SCIPP) were established to facilitate professional
development for teachers, principals and school curriculum leaders in collaboration
with university partners (Department of Education, Training and the Arts, 2007). The
SCIPPs were selected to be based in a cluster of schools, both primary and
secondary. At the time of writing, each SCIPP works with a partner university to
deliver the professional development needs of teachers within each cluster. The
SCIPPs also work with other clusters, sharing ideas, programs and expertise. SCIPPs
bring together teachers, students, universities, research bodies, Government
departments and science-based industries and employers. They draw on these
different fields of expertise to design and deliver innovative professional
development. School C was identified as a SCIPP and has continued to deliver
biotechnology professional development.
4.3.2 Participating School Profiles
The following overview of the biotechnology education profiles of the
schools involved in this study has been assembled from information provided by the
educators during interviews and focus groups. These profiles provide an overview of
the context in which the study has been conducted.
School A
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School A is a moderate sized high school, catering for an established inner
city suburban district of the capital city. Biotechnology is an important component of
the science curriculum at school A. Through the Secondary School Renewal
Program, biotechnology was chosen as a specialist area of science study at the school
because of its importance and potential contribution to the growth of the State’s
economy and the political agenda. Equipment appropriate to biotechnology was
purchased and in 2001/2002, staff with expertise in the area of biotechnology was
employed. As a member of the Queensland Biotechnology Education Network, the
staff have delivered Biotechnology PD and established a loans scheme for other high
schools in their region.
An “Academy of Science”, specialising in biotechnology and Biology, was
established at the school in 2002 to provide accelerated pathways for academically
high achieving students in Years 8, 9 and 10. Biotechnology units and practicals
were also embedded in several electives and the school has endeavoured to
incorporate biotechnology as a major context for their new Senior Biology,
Chemistry and Science 21 programs. A partnership was established with a local
university to enable capable senior students to gain credit towards a Bachelor of
Biotechnology or Bachelor of Bio-molecular Science degree through university
modules embedded in the curriculum.
In 2005, School A was awarded the status of Specialised School of Science in
Biotechnology by Education Queensland, through a policy initiative titled Spotlight
on Science. In addition, in 2006 the school received a Department of Education
‘Showcase Award for Excellence in Innovation’ for their incorporation of
biotechnology into their science programs.
School B
School B is located in a rapidly expanding region of the state’s second largest
city, which has a developing biotechnology and health science industry.
Biotechnology is an expanding component of the science curriculum at this school.
The staff and students consider biotechnology ‘exciting’ and enjoy the learning
experiences, with the students relating well to this area of science. The key teachers
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have continued to research appropriate learning experiences in biotechnology to
ensure the continued expansion of biotechnology education at the school.
Learning experiences in biotechnology are engaged with by students in the
Biology and year 10 Science courses, with some students electing to use
biotechnology laboratory techniques to undertake Extended Experimental
Investigations (laboratory-based or fieldwork experiments to answer an open-ended
practical research question), which are an assessable practical component of these
courses. The Senior Biology course engages with biotechnology in the Disease,
Genetics and Evolution units, and Year 10 Science in the Disease unit.
The school is fairly well resourced with respect to biotechnology equipment,
with purchases being made out of the school science budget over time as part of their
commitment to engage with contemporary biology, and some equipment was
acquired as a gift from a pathology laboratory. The school has had no financial or
collaborative support from the tertiary sector or individuals from industry.
School C
School C is located in a large provincial city. Biotechnology is a significant
component of the science curriculum at School C, with both staff and students
enjoying and valuing biotechnology education. Over time, the science department
has consciously and deliberately charted a path along a contemporary science
continuum that has required a change of staff beliefs, values and teaching practices,
as well as a significant commitment of both personal and school time.
The staff made a conscious effort to be part of all new syllabus trials, which
precipitated a massive overhaul of Work Programs to enable the inclusion of
biotechnology, using real world contexts, and a challenging hands-on inquiry
process, in line with research literature (Tytler, 2007) and school/science department
beliefs and values. In addition, the teaching staff has been conscious of developing
student scientific literacy.
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Biotechnology is written into the Biology, Chemistry, Multistrand (general
science), Marine and year 10 Science work programs. In terms of assessment, there
is a range of assessment items used, including traditional exam questions, oral
presentations and reports on experimental investigations.
The initial impetus for change was brought about by financial support from a
State Government initiative. In addition, the school principal contributed from school
funds. These funding windfalls were supplemented with significant funds from an
Australian School Innovation in Science, Technology and Mathematics (ASISTM)
grant. The school is now a Science Centre of Innovation and Professional Practice
(SCIPP) and hence is expected to facilitate professional development for teachers,
principals and school curriculum leaders in collaboration with university partners.
These funding opportunities and the links developed with the local university as a
result of the ASISTM project and SCIPP have enabled the school to become well
resourced and supported with respect to biotechnology equipment.
Over the past two years, the staff at the school has been responsible for the
provision of professional development for teachers and laboratory technicians from
both public and private schools within their regional network. The school also
administers a loans scheme, where biotechnology equipment is available to local
schools at no cost and the school laboratory technician provides the appropriate
technical support.
4.3.3 Summary of Impacting Events and Initiatives
A summary of the events and initiatives impacting on the uptake of
biotechnology education within schools A, B and C for the time period 2003 – 2007
is presented in Table 4.2. It is worth noting that apart from the Biology Syllabus
there were no curriculum materials that could be included in this study which
supported the uptake of biotechnology.
It can be seen from Table 4.2 that School C was comprehensively engaged
with the impacting events and initiatives, whereas Schools A and B were engaged to
a lesser extent. Teachers from each of the schools attended BEC and QBEN
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professional development and were proactive in using Biotechnology Online
resources in their teaching as well as subscribing to Biotech Babble for additional
resources. This has supported their actions to increase the content of their Senior
Biology courses.
TABLE 4.2:
Summary of Impact of Events and Mechanisms on Subject Schools.
Impacting Events and Initiatives School
A
School
B
School
C
Visited by CSIRO Outreach Program
Biotechnology Online Used for Teaching/Learning
Attended BEC Professional Development
Spotlight on Science Education Awards- School Educator
Current Biology Syllabus
QBEN Member
Attended QBEN Professional Development
Visited by the BioBus
ASISTM Funded Project
Staff Received Biotech Babble
Identified as a SCIPP
4.4 THE PROCESS OF ADOPTION AND IMPLEMENTATION
This section deals with Research Questions 2, 3, 4 and 5:
RQ2. How were teachers influenced to adopt the new curriculum?
RQ3. How did teachers actually implement the new curriculum?
RQ4. How did concerns raised by teachers, change over time as they
incorporated biotechnology into their classrooms?
RQ5. What factors were related to changes in the patterns of teacher
concerns and use of the new curriculum?
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These research questions are addressed through data collected from a group
of 11 educators (six from School A, three from School B and two from School C),
via focus group discussions and interviews, where they shared their stories about
their individual professional development journeys and changes in their thinking
with regard to the implementation of a new science curriculum. Their individual and
collective experiences were also explored with regard to the implementation process
undertaken for the new curriculum.
4.4.1 Factors Influencing the Adoption of the New Curriculum.
This section relates to Research Question 2. Additional rigour and insight has
been added into the study by layering the analysis through representing the data
using interconnected levels of themes (Creswell, 2005). The interviews and
discussions that occurred as part of this study have identified thirteen minor themes
that influenced educators in their uptake and implementation of contemporary
biotechnology education. These thirteen minor themes have been organised into four
major themes and where appropriate factors which impacted on these themes have
been described. These results are summarised in Table 4.3.
The order of the themes listed does not imply that a hierarchy of importance
was attributed to them by the subjects or that it is a representation of the frequency of
their nomination, but rather reflects the order in which they emerged during the
interviews and focus groups, due both to the order of questions asked and the logical
progression of the discussions.
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TABLE 4.3:
Themes and Factors in the Biotechnology Stories of Educators
Major Themes Minor Themes
Factors
Resources Physical Equipment Teaching/Learning Environment
Time Program Writing Learning Experience Development Assessment Design Skills Development Funding Applications
Personnel Laboratory Technician Key Teacher Critical Friend
Knowledge/Skill Acquisition
Professional Development
Background Knowledge Skills Development
Constant Updating Syllabus
Work Program Unit of Work Learning Experiences Sourcing
Catering for Student Diversity Assessment Pedagogy
The Human Element
Teacher Training Cognitive Challenge Coping with a Paradigm Shift
The major themes, minor themes and factors listed in Table 4.3 are discussed
individually in each of the following sections.
4.4.1.1. Resources
The first theme emerging from the data was “Resources”. These included
Physical, Time and Personnel.
Physical: Each of the schools in this study was fortunate in their level of
biotechnology equipment resourcing and the appropriateness of the physical
environment.
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Equipment: The biotechnology equipment and the number of each item for
each of the schools at the time of this study are listed alphabetically in Table 4.4.
TABLE 4.4:
Biotechnology Equipment Possessed by Each School
Equipment Item School
A
School
B
School
C
Supporting
Consumable Items
Horizontal Electrophoresis Tank
6 4 12 Agarose, TAE buffer, DNA, Enzymes, sample loading dye, DNA stain
Incubator 1 2 1 -
Microcentrifuge 1 1 1 Microcentrifuge tubes
Micropipette 6 6 6 Micropipette tips
Platform Shaker - - 1 -
Power Source 6 4 14 -
Spectrophotometer 1 6 - Cuvettes
Thermal Cycler 1 - 1 Tubes, enzymes, dNTPs
UV Light Source 1 1 1 -
Vertical Electrophoresis Tank
- 1 2 Pre-cast gels, TGS buffer, sample loading dye, size standards, protein stain
Vortex Mixer - - 1 -
Waterbath 3 1 1 Waterbath sample floats
This list also itemises the consumable items held by the schools to support the
use of the equipment in the classroom. All schools could be considered to be well
resourced with respect to the essential biotechnology equipment as outlined by Moss
(2007). This enabled them to undertake a variety of classroom learning experiences.
Teaching/Learning Environment: Each of the schools had existing, dedicated
laboratory facilities that had fixtures that enabled the seamless uptake of
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biotechnology practical activities. The biotechnology teaching laboratories at each of
the schools were inspected by the researcher and found to comply with Physical
Containment Level 1 (Standards Australia, 2002), which is required for
biotechnology practical learning experiences which involve the genetic manipulation
of organisms (Office of the Gene Technology Regulator, 2000).
Time: Each school site nominated that a significant commitment of time had been
required in order that they could become biotechnology engaged. The schools
provided teachers with time for program writing and to plan, which has needed to be
reflective, ongoing and long term; to develop learning experiences and assessment;
to be trained, and to write funding applications. In addition, teachers needed to be
prepared to contribute a significant amount of their own time to ensure success. Susie
(School A) felt from her school’s experience that:
Becoming a biotechnology ‘engaged’ school should be realized through the
implementation of a 5-year plan. Schools shouldn’t try to do it all at once as it is
overwhelming!
Program Writing: Since biotechnology education is in its infancy in
Australian schools and guiding documents are not readily available, each of the
studied schools acknowledged that they had undertaken program writing to enable
the uptake of biotechnology education. As offered by Rob (School A):
You need an opportunity to sit down and write a program…If you don’t have that,
biotech won’t get put in.
None of the schools nominated whether in writing these programs, attention had
been given to contemporary investigative orientations in curricula and whether these
programs were embedded in pedagogical practices that recognised how students
learn. These schools anticipated that program writing would continue to be a
required activity for some time to come as no formal biotechnology program is
known to be in draft form.
Learning Experience Development: Some biotechnology learning activities
required time for development, while others were able to be sourced. However, the
latter invariably needed to be adapted to suit an individual educator’s context. This
necessitated a substantial apportionment of time to ensure success for students with
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the learning experience as it generally required trialling and further modification.
Susie (School A) felt from her own experience that:
There are biotechnology learning experiences out there if you look for them, but they
mostly need to be adapted to suit your program. This takes time.
Assessment Design: Assessment instruments used by the schools to assess
biotechnology student learning were ad hoc and piecemeal, mostly designed on site
to suit the particular school’s needs. There were no banks of assessment instruments
to draw from. The conception, design, trialling and ongoing modification of
assessment instruments posed a significant drain on teacher time.
Skills Development: New laboratory skills (e.g. micropipetting, gel loading)
were invariably encountered and learnt at biotechnology professional development
opportunities. However, mastery of any newly acquired skill required practice over
time.
Funding Applications: Schools A and C acquired a significant amount of
their biotechnology equipment, resources and staff support through successful
funding applications. This required a significant time allocation to source, identify
and apply for the funding. In addition, the funding required ongoing and follow-up
reporting on the expenditure.
Personnel: Discussion of personnel focused on the roles of the laboratory
technician, key teacher and critical friend.
Laboratory Technician: The consensus of opinion of educators at each school
strongly indicated that an appropriately trained, knowledgeable and valued
laboratory technician was a fundamental requirement for their school’s effective
ongoing engagement with biotechnology education. As offered by Jane (School A):
A labby who understands or who has experience, is a valuable asset- a must
have.
The teachers felt that it was essential that their laboratory technicians were ‘on-
board’ from the commencement of their programs and that they were able to
experience all the professional development opportunities alongside the teaching
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staff. Not only were these individuals valued for their roles in the management of
learning experiences, through setting them up and ensuring that they worked, they
were, in some cases, a valued member of the teaching team by being present in
classrooms to assist the teacher where required.
School C’s Head of Science, Fran, felt that their laboratory technician was
instrumental in their level of engagement with biotechnology, and was the ‘go to’
person for teachers in their biotechnology laboratory program as she possessed
several years of practical experience in the laboratory techniques from previous
employment in a research laboratory.
If you give Joan a topic she goes and finds an activity. She is ahead of me and
the teachers! (Fran, School C).
Joan revealed that over the past two years, she had conducted formal ‘train
the trainer’ sessions in DNA extractions and electrophoresis for her peers from both
public and private schools in their local regional network. These schools had adopted
aspects of the biotechnology program from Joan’s school (School C). Joan also
acknowledged that she administered a loans scheme, where biotechnology equipment
was available to local schools that pay for consumables at cost, but no equipment
loans costs. Initially Joan went out with the equipment to run student learning
activities. Now that she has trained the other laboratory technicians, schools borrow
the equipment and use it as required, with Joan still available if needed. There was
no charge to any schools for Joan’s time.
School B’s teachers noted that while their original laboratory technician had
been at their school for some time, they did not realise that she had skills from
previous industry experience that had been unrecognised, yet were essential to their
school’s progressive uptake of this contemporary science.
I don’t know how it would work if our labbie wasn’t on-board. Ours (laboratory
technician) ran one-on-one sessions on microbiology and electrophoresis for
existing staff. She also in-serviced each new teacher... When she left, we were
fortunate in that her replacement was a young university graduate who had
biotechnology experience and skills from her university course. (Tom, School
B).
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Key Teacher: It was expressed at each site that it was important to have a key teacher
on site who was either experienced in biotechnology or who was willing to put in the
extra time and personal commitment to become the resident ‘expert’. Paul (School
A) felt that this was essential:
Having someone with Susie’s breadth of experience was absolutely essential.
(Paul, School A).
In addition to any coordination time (available at schools A and C), these individuals
spent a lot of their own time (lunch breaks, before and after school) setting up and
trialling experiments and training staff. As pointed out by Jane from School A:
She (Susie) showed us a number of times what to do. It took more than once to
be shown how to use the equipment. (Jane, School A).
In addition, where possible the key teachers also offered their services as an extra
teacher in laboratory classes to ensure the success of the learning experience and to
maximise the participation and enjoyment of the students.
Critical Friend: The educators defined a critical friend as being anyone from
a laboratory technician who helped to run activities in the classroom, a fellow
teacher who was jointly experiencing the same issues, through to a technical, content
or pedagogy ‘expert’. Fran, from School C was very definite about the significant
value of a critical friend:
Your greatest resource is a critical friend. (Fran, School C).
While several other educators stated that they needed ongoing access to a ‘critical
friend’.
Teachers at each of the schools studied had the availability of ongoing access
to an external ‘critical friend’ who was able to offer the provision of technical
support, resources, professional development, in-class support and advice on
pedagogy.
4.4.1.2. Knowledge/Skill Acquisition
The second theme emerging from the data was “Knowledge/Skill
Acquisition”, with Professional Development and Constant Updating presenting as
factors.
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Professional Development: All of the educators were of the definite opinion that
both content and laboratory skills should be addressed in any biotechnology PD,
along with a significant hands-on experimental component that can be directly
transferred into the classroom.
Hands-on is a must. (Tom, School B).
It was felt that any PD should not be done in isolation; it should be followed
up with some sort of consolidation time. In addition, syllabus links must be made
obvious to the educators attending the PD.
Getting into the syllabus and seeing where it (biotechnology education) fits is a
very big part of what you need to do. The success of it is if the teachers can find
where they can put it in their program. If you don’t tell them then sometimes
they don’t know. If you don’t even suggest that in your PD then they go away
with nothing. It needs to be linked into the syllabus (Marg, School A).
There have been a few times we have been to a PD and seen experiments that
we have not implemented as we haven’t seen where we can put them. (Jane,
School A).
Staff at School C related that whole staff ‘in-house’ PD delivered by an
outside provider had proven to be the most effective form of PD for them, as all of
the staff were able to appreciate the learning experiences being successfully
undertaken in their own teaching laboratories. In addition, staff appreciated the
‘expert enthusiasm’. They suggested that one day of PD was not sufficiently
effective and that biotechnology PD should be run over two consecutive days to
maximise the benefits and to minimise costs.
School B maintained that any included activities must realistically be able to
be engaged with in the school laboratory and that cost needs to be acknowledged as
an important consideration for schools. The PD activities must also be adaptable to
broaden the ability to undertake them in a range of school contexts. Where possible,
cheaper mock/generic versions of learning experiences should also be outlined in PD
programs. Regardless of the learning experiences, extensive safety advice and advice
on standard operating procedures should be addressed.
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Julie (School A) offered that if you look at a lot of the science centre courses
in the UK, they are all 4 days.
They are all quite extended, where the first 2 ½ days you learn what you need to
do for your 10 weeks, then you come back 5 months later and you have another
1½ days to review, reflect, talk about it. Primary Connections is done the same
way.
Susie (School A) suggested that as well as participants being provided with a
resource package at the PD event, the concept of PD should extend outside the
bounds of instructional interaction- participants should be given a pre-PD package to
familiarise themselves with prior to the face-to-face sessions.
There was a concensus across the schools that the ‘train the trainer’ model of
professional development was not ideal for biotechnology education.
With something like biotechnology, a one-day train-the-trainer PD just does not
work. You need to have school resources and facilities at the same level as that
used in train-the-trainer model to be able to train people up to the same level
and even then you don’t achieve the same result. (Paul, School A).
Of considerable concern to the educators was that this model of PD is only as
good as the ‘trained’ presenter. Under this model there is a dilution of the ‘passion’
of the initial trainer, and since biotechnology education is potentially confronting and
daunting to a significant number of science educators it is an advantage to have an
almost ‘evangelical’ person conducting the PD. If schools do elect to engage with the
train the trainer model, the in-house trainer would need to be very carefully and
strategically selected and trained to ensure the maintenance of passion and to avoid
disenfranchising other members of staff.
In addition, as offered by Neil (School A):
The problem is finding the time to train everyone else, and not worrying about
covering your own classes.
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Both the science teachers and the laboratory technicians felt that it was
essential that laboratory technicians attend biotechnology PD as they were key
people in ensuring the success of the uptake of learning experiences in the schools.
The laboratory technicians themselves felt that it was valuable to be professionally
developed in the student learning experiences along with the teachers, as with
biotechnology, they found themselves spending more time in the classroom as a
‘teaching’ member than with other science topics. They also felt that they required
additional PD and support as a specialised group, as they had further PD
requirements to the teachers in that they needed to know more aspects of any
particular learning experience, as they were often required to trouble shoot and/or
improvise when invited into the classroom.
We also need to know all the preparation of learning experiences, setting up and
clean-up - what goes on behind the scenes. (Joan, School C).
However, one teacher (Tom, School B) felt that teachers also needed the preparation
knowledge and skills in case of the laboratory technician’s absence or change of
personnel.
Although it was felt by the laboratory technicians that the ‘ethics’ aspect of
biotechnology and the socio-scientific arguments were good to know from a personal
perspective, it was not seen as being as relevant as the hands-on learning
experiences, as it didn’t require laboratory technicians to prepare the learning
experiences or have contact with students.
Background Knowledge: Most of the educators identified that they
commenced their engagement with biotechnology education with a relatively poor
knowledge and understanding of this field of science. Since contemporary
biotechnology is still a relatively new area of education and it advances so rapidly,
much of the content has not yet made it into school textbooks, making it difficult to
access information written at an appropriate level. This highlighted the importance of
including background content and notes in PD sessions as this may be the only
access to appropriately written content available to the educators.
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Skills Development: It was recognised by both the teachers and laboratory
technicians that a particular set of practical skills were required to undertake most
biotechnology practical learning experiences. These skills were often novel, even for
experienced science educators. Consequently, the need for a significant hands-on
component as part of biotechnology PD was identified.
Constant Updating of Knowledge and Skills: It was strongly felt by the educators
that they needed a source for updates. Access to ongoing professional development
opportunities were desired, along with opportunities to access and engage with
institutional lecture series, visiting scientists (especially younger ‘real world’ ones)
and outreach programs.
4.4.1.3. Syllabus
The third theme emerging from the data was “Syllabus”, with Work Program,
Unit of Work, Learning Experiences, Assessment and Pedagogy presenting as
factors.
There was general agreement that existing syllabus documents had the scope
to enable schools to engage with both theoretical and practical biotechnology
learning experiences and that existing work programs in most schools could undergo
minor adjustments to accommodate biotechnology. As schools were more readily
incorporating biotechnology into their work programs across a range of subjects, it
was felt that there was a significant need to assist teachers in interpreting the syllabus
documents and highlighting opportunities that existed for the inclusion of further
biotechnology learning experiences that addressed knowledge, practical and socio-
scientific dimensions. It was felt that this would best be achieved through
professional development, giving teachers deeper knowledge and greater hands-on
experience.
It was also generally agreed that the Junior Science syllabus (1-10 outcomes
based framework) had more room to move to enable the introduction of
biotechnology. In addition, as the controversial socio-scientific aspects of
biotechnology are often first dealt with in Junior Science courses, it makes sense to
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introduce the laboratory techniques at this point to enable students to see the link
between laboratory practices, their applications and their potential consequences.
This is more meaningful as none of these aspects are then dealt with in isolation.
Need to have them understand and appreciate the techniques to engage more
meaningfully with controversial topics such as cloning, and conversely the
importance of the practical activities is brought home by its potential
applications. Not just the activity in isolation – it’s meaningless. (Rob, School
A).
The teachers felt that while the new Biology syllabus gave schools the
opportunity to use a wider range of contexts or content to cover the key concepts,
there was still a slow uptake of biotechnology education. The most common
explanation for this among the teachers was that nothing significant happened
without time and effort. There needed to be an opportunity for an interested group of
individuals to sit down, design and articulate a program that addressed the syllabus
objectives. Currently, schools-
… end up constructing a work program based on the background knowledge of
staff who are teaching the subject at the time. If you don’t have that, biotech
won’t get put in. (Neil, School A).
Some teachers felt that the new Science 21 syllabus may offer increased
opportunities for the inclusion of biotechnology due to a perceived greater flexibility.
There’s more flexibility in Science 21. (Rob, School A).
One concern that was raised was the predisposition of some teachers of
incorporating biotechnology content and practical activities that immerse students
immediately in high level molecular biology and deal exclusively with DNA
manipulation. This approach was pointed out by several teachers to be a meaningless
exercise in many ways, particularly because of cost and the requirement for
specialised equipment and techniques.
There’s no point in doing lots of fancy stuff and having fancy gear if you
haven’t brought them (students) through from (year) 9, 10. (Julie, School A).
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Work Program: Staff at each school expressed an opinion that there was room in
the syllabus for the inclusion of biotechnology and they had incorporated both
theoretical and practical learning experiences into their science curricula by writing
them into their individual subject work programs.
Unit of Work: Although each of the schools engaged with biotechnology embedded
within subject units, there was considerable discussion at School A about the
potential and merits for designing a stand alone 10 week biotechnology unit of work
which would be designed as a logical continuity of learning experiences that
scaffold, that people can come in, build up, hit their ceiling, drop out, and can be
tailored and modified to drop into different subjects.
You’ve got a module that theoretically you can drop to any school. The idea is
that the teacher can read through it… As the teacher is going through it, the
teacher will definitely see the logic behind it and this will probably be a self-
motivator for the teacher…The project is logical, it’s progressive, each step you
build on what you learnt in the previous step. There are no quantum leaps… If
you had this manual that had 10 experiments in it, you can have web links; you
can have a website somewhere that accompanies the book. The website can
have PowerPoint presentations in it. The book can be self-contained; it can have
everything in it…The students will tell you what’s wrong with it and what’s
right with it…you’ve basically got a whole editorial process happening. (Rob,
School A).
Learning Experiences: In order to ‘legitimise’ biotechnology and not just have it as
an interest item or ‘show and tell’, inclusive learning experiences needed to be
selected and developed which allowed students to explore biotechnology concepts
using real world contexts, and a challenging hands-on inquiry process.
Biotechnology should be thought of as an educational experience rather than as
a series of activities. An integration of biotechnology content and activities
across a subject’s topics is preferable to isolated biotechnology learning
experiences or demonstrations…It (biotechnology) must fit into the curriculum
and not just be interest items or show and tell. (Susie, School A)
…using real world contexts, and a hands-on inquiry process, in line with the
school or science departments’ beliefs and values. There has been a conscious
push from the beginning to an ‘inquiry classroom’, where students are
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challenged. There is evidence in the research literature as this being good
practice (Fran, School C).
Sourcing: Although many biotechnology based learning experiences can be
sourced, mostly through web searches, success in using them can be varied. It was
noted that a preferred source for reliable learning experiences was PD, as the
learning experiences presented have been trialled and modified prior to presentation.
In addition, the person presenting the PD becomes a source of technical assistance.
The science staff at our school are committed to updating and increasing their
biotechnology knowledge and skills. We’d definitely prefer to do this through
PD. (Fran, School C).
There’s been no doubt that PD workshops have been the best thing for us. Not
just because it ensured that we can make the experiments work with the
students- well mostly anyway, but also because it has given us someone to call
on for technical help, or to troubleshoot. (Tom, School B).
Catering for Student Diversity: To a certain extent, student diversity was
considered in the design of biotechnology activities and units of work at the schools.
In general, student diversity was catered for by embedding biotechnology across a
range of junior and senior science subjects, with it scaffolded to cater for a less
academic clientele, and explored more deeply with high end academic students.
We scaffold our biotechnology program so that the content is dealt with in least
depth in year 10, then we deal with it in slightly more depth with our Gifted and
Talented year 10 students and in Science 21 to cater for a less academic senior
clientele. Then we have the greatest academic rigour in Biology and Chemistry.
(Fran, School C).
Assessment: While there were some biotechnology based assessment tasks
(experimental investigations, oral presentations and exam questions) embedded in a
range of senior subjects across the schools studied, educators at each school stated
that there was the potential to create more.
Our current assessment tasks need to be modified to include more
biotechnology based questions. The potential to create more (biotechnology)
assessment items needs to be explored. (Susie, School A).
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We currently have some senior students using biotechnology explorations for
their EEIs, but there’s definitely the potential to create more biotechnology
based assessment items. (Tom, School B).
Pedagogy: The topic of pedagogy was not voluntarily raised by any teacher, either
in interviews or focus group discussions. When the teachers were asked to comment
on pedagogy with respect to implementing the syllabus, they did acknowledge the
importance of effective pedagogical practice but were not inclined to discuss it
further, instead opting to steer the discussion back to talking about the development
of appropriate learning experiences and professional development. The only time
that pedagogy was raised by a teacher was in relation to the production of a ten week
biotechnology unit and the associated professional development of teaching staff that
would be required. In this context, Neil (School A) suggested that appropriate
pedagogy should be addressed for each of the included activities.
4.4.1.4 The Human Element
The final theme emerging from the data was “The Human Element”, with
Teacher Training, Cognitive Challenge and Coping with a Paradigm Shift as factors.
Teacher Training: When teachers at School A were asked if they were seeing any
evidence of biotechnology skills in undergraduate teachers, they responded in the
negative and stated that teachers coming from a Bachelor of Education background
wouldn’t have had the same exposure to biotechnology techniques as those coming
from a Bachelor of Science. Neil felt that if schools were looking at building a
biotechnologically competent staff, then these individuals were most likely going to
be university science graduates. Paul stated that concerns over the level of content
knowledge of Bachelor of Education graduates compared to post graduate Diploma
of Education graduates were raised at a recent Science, Technology, Engineering and
Mathematics (STEM) consultation. One strong message that came out was that
Bachelor of Education graduates may not have as deep knowledge of science
content.
Rob felt that:
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One of the advantages of developing a 10 week biotechnology unit along with a
professional development package is that it can be given to a teacher training
course to help develop trainee teacher laboratory skill competencies in
biotechnology.
Cognitive Challenge: As no teachers at any of the subject schools had a specialist
biotechnology degree, incorporation of some theoretical and practical aspects of
biotechnology into the curriculum presented a considerable cognitive challenge to
staff. This had necessitated a significant allotment of personal time to reading and
internalising content from journals, research articles, textbooks and websites, which
added to teacher stress.
Our staff are still challenged (by biotechnology education) as none of them have
a biotechnology degree. Lots of time is spent reading. (Fran, School C)
Coping with a Paradigm Shift: Anecdotally, it would appear that some older (and
often highly experienced) science teachers are already struggling to cope with the
paradigm shift in contemporary science education, from content based science
delivered through ‘chalk and talk’ to process driven science education delivered
through guided discovery. These educators are now being further challenged to
accept a novel area of science and in some cases are ‘opting out’ to teach science
subjects that are more traditionally taught or relocating to a site where biotechnology
is not yet part of the curriculum.
Because our journey required a change of staff beliefs and teaching practices,
there was initially resistance from some staff and they either chose to accept the
changes or move on to another school. (Fran, School C).
4.4.2 The Process of Implementation
This section relates to Research Question 3 and examines the process by
which teachers implemented biotechnology education.
School A
Biotechnology was chosen as a specialist area of science study at School A
because of its importance and potential contribution to the growth of the State’s
economy and the prevailing political agenda at the time. In order to support their
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decision to pursue biotechnology education, the school purchased appropriate
biotechnology equipment, employed staff with expertise in this area of science and
allocated coordination time for the key teacher. In addition, a partnership was
established with a local university to enable students to gain credit towards selected
degrees through university modules embedded in the Senior curriculum.
An “Academy of Science”, specialising in biotechnology and Biology, was
established at the school to provide accelerated pathways for academically high
achieving students in Years 8, 9 and 10. Biotechnology units and practicals were
embedded in several electives and the school made a conscious decision to
incorporate biotechnology as a major context for Senior Biology, Senior Chemistry
and Science 21.
The school became a member of the Queensland Biotechnology Education
Network, which enabled them to access professional development, support and
funding.
School B
The school initially engaged with biotechnology through staff realisation that
biotechnology practical learning experiences needed to be embedded in the science
curriculum at their school to enable students to experience contemporary scientific
contexts. The science department acknowledged the past professional experiences of
the laboratory technician and utilised her as a key person to up-skill the other staff in
conjunction with their attendance at external professional development.
To support this process of engagement, biotechnology equipment was
purchased out of the school science budget and was supplemented over time as part
of an ongoing commitment. Aside from some equipment being acquired as a gift
from a pathology laboratory, the school received no funding or support from the
tertiary sector or the State Education Department.
Biotechnology content and practical learning experiences were written into
the year 10 Science and Biology course structures, with some students having used
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biotechnology explorations for senior Extended Experimental Investigations. The
staff and students both enjoyed and valued the biotechnology learning experiences,
resulting in a commitment from the key teachers to research further appropriate
learning experiences in order to expand the biotechnology component of their
science curriculum.
School C
The review process of the Science Department at School C resulted in the
science staff adopting a philosophy of science education which required a change of
staff beliefs, values and teaching practices. The staff consciously and deliberately
charted a path along a contemporary science continuum which precipitated a massive
overhaul of all science subjects to enable the inclusion of biotechnology, using real
world contexts, and a challenging hands-on inquiry process. Biotechnology learning
experiences and assessment options were written into the Biology, Chemistry,
Multistrand Science, Marine Studies and year 10 Science programs. This required a
significant commitment of both personal and school time. Coordination time was
funded for a key teacher to be off-line to assist with the process.
The process of change was supported through seed funding from QBEN and a
contribution from school funds. This was supplemented with an ASISTM grant and
SCIPP funding which enabled the school to develop links with university partners.
The funding and the links enabled the school to become well resourced and
supported with respect to biotechnology equipment.
4.4.3 Changes in Teacher Concerns.
This section relates to Research Questions 4 & 5 and examines the level of
concerns held by the educators as they incorporated biotechnology education into
their classrooms, and how these concerns changed over time.
As discussed in Chapter 2, a fundamental consideration which has potential
implications for the uptake of biotechnology education is that teachers progress
through stages of interest and commitment when learning new teaching strategies or
using new curricula, and need to cope with the concerns that these bring. The
Concerns Based Adoption Model (CBAM) is a well documented model of attitude
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change which is helpful in determining the sequence of change as new teaching
programs and expectations are implemented. The model is made up of two strategies,
the Stages of Concern and the Levels of Use (Hord et al., 1987).
The model identifies and provides ways to assess seven Stages of Concern.
The seven stages are: Awareness, Informal, Personal, Management, Consequence,
Collaboration, and Refocusing. The teachers who were the subjects of this study
were in the final stages, Consequence, Collaboration, and Refocusing and were
representative of the category termed Impact. In these final stages, the teachers were
focused on the biotechnology education program’s impact on the students’
achievement, and worked cooperatively in implementing the program. The teachers
also considered the benefits of the program and considered ideas for improvement.
The Levels of Use entails eight different levels of change that teachers
experience when they are implementing a new program and can be used to determine
where a teacher stands at any given time in relation to the change process. These
Levels of Use are Non-Use, Orientation, Mechanical Use, Preparation, Routine,
Refinement, Integration and Renewal.
Across the three schools, all the educators who took part in this study had
reached at least the fifth level- Routine. They had created a biotechnology teaching
routine, felt comfortable using it and wanted to get better at teaching it. The focus
was on the teaching process, not the outcome. Half of the interviewees indicated that
they had reached at least the sixth level, Refinement. They were using the
biotechnology program to increase the expected benefits within their classroom.
These teachers could see the impact of their biotechnology program working and
used the program to maximise the effects of student achievement. It was apparent
that the key teachers at schools A and C had reached the seventh level, Integration,
and believed that the program was important to them and combined their own efforts
with related activities of other teachers and colleagues to maximise student
achievement. No teachers at any of the schools had reached the eighth level,
Renewal. That is, no individual, staff body or school had re-evaluated the quality of
use of their biotechnology education program or sought major modifications.
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4.5 BIOTECHNOLOGY PROFESSIONAL DEVELOPMENT KEY
COMPONENTS
This section deals with Research Question 7:
RQ7. What key components are required in a biotechnology
professional development model?
This research question is addressed through data collected from the literature
and via interviews and focus group discussions with the subject group of educators
from the three school sites.
As outlined in the theoretical framework (2.10), an examination of the
literature relating to professional development for science teachers revealed aspects
that need to be considered in the design and implementation of an ‘ideal’
professional development program. According to the literature (Fishman et al., 2003;
Garet et al., 2001; Gray & Bryce, 2006; Loucks-Horsley et al., 2003; National
Academy of Sciences, 1996), the ideal program has twelve key components.
During the interviews and focus group discussions, the participants in this
study nominated these twelve key components as being important to them for
inclusion in a biotechnology professional development program. However, they
revealed that these key components were not all present in the three separate
biotechnology professional development initiatives that they experienced (see Table
4.5).
It can be noted that no single program contained all twelve of the key
components. The QBEN professional development program was the most closely
aligned to the ideal model, and as it evolved from the BEC professional development
program this could be expected. The professional development presented by the
BioBus was a one-off, hit and run experience for educators and as such had limited
opportunity to address the key components.
TABLE 4.5:
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Key Components and the Professional Development Programs
Key Components
Professional Development Programs
BEC QBEN BioBus
1. Specifically Designed
2. Collaborative
3. Content Appropriate
4. Learner-Centred
5. Active
6. Challenging
7. Communal
8. Supportive
9. Reviewed
10. Guided
11. Supported
12. Integrated
The participants also proposed that effective biotechnology professional
development should possess additional components that influenced them in their
uptake and implementation of contemporary biotechnology education. These reflect
the themes and factors identified in Section 4.3.1. They proposed that it should be:
1. Preparatory- Engages each participant in a pre-professional development
package of content and curriculum materials to ensure their preparedness
for the program.
2. Physically Relevant- Designed for the practical activities to be conducted
in a school laboratory.
3. Inclusive- Professionally develops all relevant members of a school’s
staff at the same time. It does not follow the train-the-trainer model.
4. Explicit- Allows educators to engage with a range of appropriate learning
experiences as a contextual application of the syllabus, with implicit
links to curriculum documents being made explicit.
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5. Up-Skilling- Provides significant opportunities for educator acquisition
of contemporary laboratory skills using modern laboratory equipment.
6. Safety Focused- Provides a thorough grounding in the workplace, health
and safety implications of practical based biotechnology education.
7. Socially Aware- Provides a guided discussion of socio-scientific aspects,
which takes into consideration the beliefs and knowledge held by the
educators.
8. Resourced- Provides extensive teaching resources and post-professional
development access to a range of equipment and consumables through
industry or institutional loans.
The professional development programs were assessed for their alignment
with these additional key components. The data are presented in Table 4.6. It can be
noted that none of these programs contained all eight of the additional key
components. The QBEN professional development program was again the most
closely aligned and the BioBus again reflected that it had limited opportunity to
address the key components.
Table 4.6:
Additional Key Components Aligned with the Professional Development Programs
Additional
Key Components
Professional Development Programs
BEC QBEN BioBus 1. Preparatory
2. Physically Relevant
3. Inclusive
5. Up-Skilling
6. Safety Focused
7. Socially Aware
8. Resourced
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4.6 SUMMARY
This chapter outlined the results of a retrospective study on a group of
teachers and laboratory technicians and their development into modern
biotechnology educators over a five year period (2003 - 2007). Through document
content analysis, the whole biotechnology education experience that was available to
educators within the nominated time-frame was documented. This was followed by
the results from individual interviews and focus group meetings which explored and
evaluated the components of the educator’s professional development experiences
and examined the influences and processes used to adopt and implement modern
biotechnology education in the studied schools, and how educator concerns changed
over time. In addition, the key components of a science professional development
program were described and compared to the professional development programs
experienced by the educators.
The chapter addressed six of the seven research questions. An analysis of the
data and consideration of the final research question, which relates to the
development of a biotechnology professional development model, are dealt with in
Chapter 5.
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Chapter 5 Analysis
In this study, the recent evolution of modern biotechnology education in
schools was documented as part of the changing nature of science education. This
chapter discusses the findings of the research and uses the implications of these
findings to propose an evidence-based professional development model for
biotechnology education.
5.1 EVOLUTION OF MODERN BIOTECHNOLOGY EDUCATION
This section discusses the data collected from documents and retrospective
case studies relating to educator experiences with biotechnology education and the
subsequent processes of the embedding and integration of this biotechnology
education in school programs. The first part of this section provides a contextual
analysis of the events and initiatives that were identified through document content
analysis as having impacted on the evolution of biotechnology education, shaping
the biotechnology educational context for the subject schools and thereby cultivating
the need for professional development.
5.1.1 Biotechnology Education Events and Initiatives
While this study was primarily concerned with a five year period (2003-
2007), consideration is given to a limited period of time either side of this window
where the extended time frame sheds further light on the study.
Fourteen impacting events and initiatives were identified through the analysis
of the content of the documents. These events and initiatives provided a backdrop
and can be considered as either contributing to the biotechnology education context
or directly impacting on the educators’ uptake of contemporary biotechnology
education. The relationship between them can best be appreciated when they are
arranged along a timeline (see Figure 5.1).
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Figure 5.1. A Timeline of Impacting Factors.
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5.1.1.1 Contribution to the Biotechnology Education Context
These factors have not had a direct influence on the uptake of biotechnology
education by the educators involved in this study, but they have contributed to the
creation of a biotechnology education context, either by providing opportunities for
engagement (CSIRO); written resources (Biotechnology Online); policies and
directions (Smart State Vision, TMSCE, Science Summit, BEU, Spotlight on Science
and Science Education Strategy); curriculum opportunities (Biology Syllabus) or a
platform (ABEN). In combination, these have legitimised the inclusion of
biotechnology education within the school curriculum and created the need for
biotechnology professional development.
5.1.1.2 Direct Impact on the Uptake of Biotechnology Education
The remaining factors have not only contributed to the biotechnology
education context, they have also had a direct impact on the uptake of contemporary
biotechnology education within the subject schools. This has been achieved through
the provision of professional development (BEC, QBEN and BioBus); provision of
classroom learning experiences and technical support (Biotech Babble); funding
(ASISTM) and nomination as a biotechnology professional development provider
(SCIPP).
5.1.1.3 The Direction of Biotechnology Education
When the events and initiatives that have contributed to the biotechnology
education context, and directly impacted on the educators’ uptake of contemporary
biotechnology education are arranged along a continuum, a sense of direction and
change of emphasis can be inferred.
Firstly, there is a direction which can be argued to have arisen from the
deliberate implementation of policies and initiatives. The Smart State Vision (1998)
set the agenda for The Smart State Strategy, which had a strong focus on
strengthening the State’s educational foundations. In 2002, through the Science
Summit’s renewed vision for science education, the Smart State Strategy gave rise to
the Science State – Smart State initiative (Spotlight on Science, 2003 – 2006) with a
six-step action plan as part of a vision for improving Queensland science education.
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The Spotlight on Science action plan was followed by the Science Education
Strategy 2006-2009.
When all of the initiatives are viewed in combination, a change in emphasis
can be observed along the continuum with respect to the process of uptake of
biotechnology education by the schools studied. Initially, through the professional
development provided by BEC, there was an emphasis on staff professional
development as a ‘just-in-time’ response to a perceived need by those schools who
were already attempting to engage with biotechnology education. The evolution of
BEC into QBEN saw a change in this emphasis, with the professional development
being supported by the development of a range of student learning experiences and
resources, with supplementary resources available through Biotech Babble. This was
in response to teacher needs and the launch of a more flexible Biology Syllabus.
From the interviews and focus group discussions, educators articulated that their
emphasis was now moving to a position where they wish to align their biotechnology
education efforts and the science curriculum.
It would be suggested that this change of emphasis is in response to
educational circumstance rather than being a planned shift. It could be argued that
the change of emphasis is a reversal of that which would be expected for the
implementation of a new science curriculum, where opportunities to engage with
biotechnology education would be embedded in the curriculum, student learning
experiences designed and then educators enabled through professional development
to provide content, skills and pedagogy. Irrespective of the journey undertaken to
arrive at the current situation with respect to educator engagement with
biotechnology education, a need exists for an evidence based model for
biotechnology education.
5.2 TEACHER CONCERNS
As discussed in Chapter 4, identifying concerns and supporting people during
change is critical for learning to take hold. The Concerns Based Adoption Model
(CBAM) was the model of attitude change used in this study to determine the
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sequence of change experienced by the subjects as the new teaching programs and
expectations were implemented.
The results indicated that these teachers were in the final Stages of Concern,
and in the higher Levels of Use with respect to biotechnology education. It is evident
from these results that the educators were well progressed through the stages of the
Concerns Based Adoption Model. It could be argued that due to the characteristics of
the participants selected for this study they had actually entered the model at Stages
and Levels that were higher than would normally be observed when educators have
new programs imposed on them, meaning also that there was a reduced pattern of
change within the continuum that could be observed. This study was conducted in
three schools that, from the early days, were highly committed to change. They had
the initiative, support and self-efficacy to engage with contemporary science and to
ensure the success of its implementation. The challenge of taking on biotechnology
was seen as an opportunity and not a threat. Each of the educators was voluntarily
engaged, and dedicated to ensuring the success of biotechnology education at their
school, so did not have the concerns that one may expect from individuals who are
pressured into being part of an initiative. While there were obstacles identified by the
subjects, they were not expressed as concerns, with each person expressing a
commitment to overcoming these obstacles.
Had the researcher included schools in this study whose staff had not
attended biotechnology professional development workshops or had not attempted
implementation of learning experiences that they had gained from the professional
development, a greater range of concerns would have been evident along with a more
pronounced pattern of change in these concerns. This does not mean that because the
participants were purposefully selected and did not represent a general cross-section
of the science teaching community, that CBAM was an ineffective model to use in
this study, rather, the model has been useful in that it exemplifies that teachers
progress through Stages of Concern and Levels of Use when learning new teaching
strategies or using new curricula and that it is important to identify these in designing
a professional Development program, in order to tailor the program to the needs of
those undertaking the professional development, to assist them in coping with the
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concerns that this process brings. It would be expected that a biotechnology
professional development program designed for the educators in this study would
have significantly different characteristics than a program designed for educators
who were encountering biotechnology education for the first time. This would be due
in large part to consideration of aspects of the CBAM model.
In general, early participants are more self-oriented and then become more
task-oriented. Finally, when self- and task concerns are largely resolved, the
individual can focus on impact and improvement of process (Loucks-Horsley, 1996).
This has major implications for the design of biotechnology professional
development as it highlights the importance of monitoring the concerns of teachers
and attending to the needs of individuals. Developers of biotechnology professional
development who know and use the Concerns Based Adoption Model will design
experiences that are sensitive to the questions that educators are asking, at the time
they are asking them. Acknowledging concerns and addressing them will be critical
considerations to enable progress in this reform effort.
5.3 A PROPOSED MODEL FOR BIOTECHNOLOGY PROFESSIONAL
DEVELOPMENT
Prior to proposing an evidence based model for biotechnology professional
development, it will firstly be established that a biotechnology professional
development model is necessary.
5.3.1 The Necessity for a Biotechnology Professional Development Model
This section deals with Research Question 6:
RQ6. Why is a biotechnology professional development model
necessary?
As outlined in Chapter 4, the literature suggests that the ideal science
professional development program has twelve key components. In addition, the
participants in this study proposed that an effective biotechnology professional
development program would possess a further eight components (see Table 5.1).
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TABLE 5.1:
Summary of PD Key Components.
Science PD Key Components
Identified from the Literature
Biotechnology PD Key Components
Nominated by Participants
1. Specifically Designed
2. Collaborative
3. Content Appropriate
4. Learner-Centred
5. Active
6. Challenging
7. Communal
8. Supportive
9. Reviewed
10. Guided
11. Supported
12. Integrated
1. Preparatory
2. Physically Relevant
3. Inclusive
4. Explicit
5. Up-Skilling
6. Safety Focused
7. Socially Aware
8. Resourced
The participants revealed that these twenty key components were present to
varying degrees in their biotechnology professional development experiences and
consideration of collected data demonstrated that no single program contained all of
the key components. In particular, the programs failed to value the professional
contribution of the educators, or provide opportunities for these educators to examine
the nature of contemporary science, thus failing to fully prepare them for the
implementation of biotechnology education. It is suggested that this situation arose
from the lack of an ‘evidence-based’ approach to planning and implementation,
resulting in biotechnology professional development which had limited effectiveness
and lacked sustainability. This indicates that there is a need for a properly researched
biotechnology professional development model.
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The implication of this aspect of the study lends support to the position that a
significant need exists for researchers to develop a carefully crafted and well
supported professional development design which will positively impact on the way
in which teachers engage with contemporary science and subsequently impact on the
learning of their students. This design should be inclusive of input from tertiary
stakeholders, industry and research organisations, and should be open to change, that
is, it should be dynamic and able to respond to variably impacting issues of teacher
experiences and concerns, workload, motivation and the teaching and learning
environment.
5.3.2 Towards a Sustainable Biotechnology Curriculum
It is proposed from the data that were generated from the analysis of the
content of the documents that the foundations of a supportive infrastructure and
integration opportunities both exist for the development of a sustainable
biotechnology curriculum. In order to progress from these foundations to achieve a
desirable outcome, it is necessary to firstly identify the drivers of contemporary
biotechnology education uptake and then develop an appropriate professional
development model.
From the literature and from data collected in this study, these drivers have
been identified as Policy and Professional Development.
Policy: Appropriate education policy is required to be formulated and
implemented in order to build on the foundations of a supportive infrastructure and
opportunities for the integration of biotechnology education.
Professional Development: An effective biotechnology professional
development model should consider each of the following.
1. Biotechnology Content Knowledge- educators need to be aware of
resources to enable them to acquire the knowledge necessary to
understand key concepts associated with contemporary biotechnology.
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2. Pedagogical Content Knowledge- educators need to experience and
become competent with a range of pedagogies required to enable
effective student engagement with biotechnology.
3. Practical Skills- a range of practical skills which are unique to
biotechnology need to be acquired and developed.
4. Curriculum Management- opportunities for the integration and
embedding of biotechnology in line with existing syllabus documents
need to be explored and made explicit.
This proposal is shown diagrammatically in Figure 5.2.
Figure 5.2. Towards a Sustainable Biotechnology Curriculum.
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5.3.3 Key Components of a Biotechnology Professional Development Model
In order to achieve a sustainable biotechnology curriculum, a professional
development model is proposed which takes into account the twelve key components
of an ideal science professional development program, combined with the eight
additional components identified by this study. It is proposed that the professional
development model:
1. Is designed to meet identified educational needs, in a context where there
is a well-defined image of effective learning and teaching.
2. Is developed and implemented through the collaboration of professional
development providers and educators thereby recognising and valuing
both the ‘expert’s’ input and the professional contribution of the
educators.
3. Engages each participant in a pre-professional development package of
content and curriculum materials to ensure their preparedness for the
program.
4. Develops knowledge, practical skills and pedagogy.
5. Is conducted in a school laboratory to facilitate a relevant physical
context.
6. Recognises that teacher learning should parallel student learning.
7. Professionally develops all relevant members of a school’s staff (teachers
and laboratory technicians) at the same time. It does not follow the train-
the-trainer model.
8. Allows educators to engage with a range of appropriate learning
experiences as a contextual application of the syllabus, with implicit
links to curriculum documents being made explicit.
9. Provides significant opportunities for educator acquisition of
contemporary laboratory skills using modern laboratory equipment.
10. Provides a thorough grounding in the workplace, health and safety
implications of biotechnology education.
11. Provides extensive teaching resources and post-professional development
access to a range of equipment and consumables through industry or
institutional loans.
12. Values and encourages continuing involvement of the participants.
Page 108
13. Provides opportunities for teachers to confront and examine their beliefs
about the nature of science, in light of new paradigms and philosophies.
14. Provides a guided discussion of socio-scientific aspects, which takes into
consideration the beliefs and knowledge held by the educators.
15. Stimulates and supports new partnerships, networks and learning
communities among participating educators and scientists, which
facilitates access to a critical friend.
16. Prepares teachers to serve in leadership roles, including that of key
teacher.
17. Ensures that evaluation is a continuous process that is used to improve
the program.
18. Has a charismatic person or group providing strong leadership.
19. Is encouraged and supported by school districts and school
administrators.
20. Links to other parts of the educational system.
5.4 CONCLUSION
The nature of science is changing, and in particular, associated with
contemporary biotechnology, is a growing social, ethical and moral impact of
science on society, necessitating scientifically literate citizens in the future. These
citizens are currently in our schools and the level of their scientific literacy will
evolve from their science education experiences. However, it is apparent in current
literature, that there is a lack of adequate teacher professional development
opportunities in biotechnology education (Gray & Bryce, 2006; Hewson, 2007) that
will positively impact on this evolution.
The purpose of this study was threefold- to document the recent evolution of
modern biotechnology education; to examine school adoption and implementation
processes for biotechnology education; and to propose an evidence based
biotechnology professional development model. This was undertaken using a
retrospective case study research methodology.
Page 109
Document content analysis was used to document the recent evolution of
modern biotechnology education as part of the changing nature of science education,
while one-on-one interviews and focus group discussions generated data that enabled
the examination of the process used by secondary schools to adopt and implement a
new science curriculum. A combination of these data sources along with the
literature review enabled the proposal of an evidence based biotechnology
professional development model for science educators.
Through the document content analysis, the whole biotechnology education
experience that was available to educators within the studied time-frame was
documented, resulting in the identification of impacting events and initiatives. These
events and initiatives were considered as either contributing to the biotechnology
education context or directly impacting on the educators’ uptake of contemporary
biotechnology education.
Three schools were selected to contribute to this study as case studies on the
basis that their staff had attended at least one biotechnology professional
development workshop during the time period studied (2003 – 2007), and they had
attempted implementation of learning experiences that they had gained from the
professional development. Individual participants from these schools were
purposefully selected to participate in the interview and focus group phases of the
study. These educators had experienced a range of professional development
initiatives and had integrated and embedded biotechnology in their science programs.
This meant that they had an experienced practitioner’s perspective with respect to the
components that they felt were essential to include in a biotechnology professional
development model.
The data collected in this study showed that while educators accepted that
there was a supportive infrastructure and integration opportunities to enable the
inclusion of contemporary biotechnology into the curriculum, the educators clearly
articulated that despite having attended biotechnology professional development in
the past, they were inadequately equipped for a more complete embracing of this
Page 110
contemporary science, particularly in the areas of content knowledge, laboratory skill
acquisition, knowledge of appropriate pedagogy, and curriculum management.
The findings of this study suggested that there was a need to develop a model
of biotechnology professional development. The literature review conducted as part
of this study identified the key components of a science professional development
model, and the educators who took part in the interviews and focus group discussions
articulated additional components for inclusion in a biotechnology professional
development model. This has led to the proposal of a model for biotechnology
professional development which considers all of the key components of science
professional development that are outlined in the literature, as well as the additional
components which were articulated by the educators studied.
Further research is required to enable this proposed model to be used to
design, implement and evaluate a professional development program to support
educators in the uptake of contemporary biotechnology education and to achieve the
outcome of a sustainable biotechnology curriculum.
Page 111
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Appendices
APPENDIX 1
Interview Questions/ Focus Group Stimulus.
Page 126
INTERVIEW QUESTIONS/ FOCUS GROUP STIMULUS. Teacher Characteristics:
• Coded Identity____ • Gender ____ • Science Qualifications ________________ • Biotechnology Industry Experience _________________________________ • Years of Teaching Experience _____ • Schools Taught at ______________________________________________ • Current Science Subjects Taught ___________________________________ • Current Grades Taught ___________________________________________
STRUCTURAL FEATURES
CORE FEATURES
Activity
Form of Activity Reform Traditional
(Study group/ (Workshop/ Network) Conference)
Duration
Contact Timespan
Participation
Reform Traditional Collective Individual
Reform Traditional Collective Individual
Reform Traditional Collective Individual
Reform Traditional Collective Individual
Activity
Content Focus
Opportunities for Active
Learning
Degree to which Activity Promotes Coherence in
Teacher’s PD
Knowledge
Skills
Issues
- Reviewing Student Work - Feedback on Teaching - Skills Practice - Discussion of Issues
- Consistent č Teacher Goals - Aligned č Syllabus - Encouraged Prof. Networks
Knowledge
Skills
Issues
- Reviewing Student Work - Feedback on Teaching - Skills Practice - Discussion of Issues
- Consistent č Teacher Goals - Aligned č Syllabus - Encouraged Prof. Networks
Knowledge
Skills
Issues
- Reviewing Student Work - Feedback on Teaching - Skills Practice - Discussion of Issues
- Consistent č Teacher Goals - Aligned č Syllabus - Encouraged Prof. Networks
Knowledge
Skills
Issues
- Reviewing Student Work - Feedback on Teaching - Skills Practice - Discussion of Issues
- Consistent č Teacher Goals - Aligned č Syllabus - Encouraged Prof. Networks
Page 127
TEACHER OUTCOMES -Knowledge & Skills- Where they enhanced?
Act
ivity
Cur
ricul
um
(uni
ts/
stan
dard
s)
Inst
ruct
iona
l M
etho
ds
App
roac
hes
to
Ass
essm
ent
Use
of
Tech
nolo
gy o
r Eq
uipm
ent
D
iver
sity
of
Teac
hing
St
rate
gies
Dee
peni
ng o
f K
now
ledg
e of
B
iote
chno
logy
CHANGE IN TEACHING PRACTICE To what extent did you make changes to your teaching practices in each of the following domains? (none > significant). a) Work Programs b) Cognitive challenge of biotechnology classroom activities c) Instructional methods employed d) Types of assessment e) Equipment/ technology usage f) Approaches taken to student diversity ADDITIONAL COMMENTS FOR CODED IDENTITY _______