teaching strategies for exploring issues in stse contexts
Post on 19-Jan-2016
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Teaching strategies Teaching strategies
forfor
exploring issues in STSE exploring issues in STSE contextscontexts
Teaching strategies Teaching strategies
forfor
exploring issues in STSE exploring issues in STSE contextscontexts
What is the issue? What is the issue?
Why does this issue arise?Why does this issue arise?
What are the different views?What are the different views?
How to make informed How to make informed judgements judgements or decisions?or decisions?
What is the issue? Why does this issue arise? What are the different views? How to make informed judgements or decisions?
Issue-enquiry approachIssue-enquiry approachHow to search & analyse relevant information?
Is the information a fact or an opinion?How strong is the
evidence?
What is the issue? Why does this issue arise? What are the different views? How to make informed judgements or decisions?
Issue-enquiry approachIssue-enquiry approach What are the values / attitudes?
What is the issue? Why does this issue arise? What are the different views? How to make informed judgements or decisions?
Issue-enquiry approachIssue-enquiry approach
Any consensus?
How to resolve the conflicts?
Who makes the decision?
Scientific knowledge?Information search
Analysis & discussion
Understand the issue
Identify the issue
全球暖化全球暖化
The greenhouse effectPractical Practical activitieactivitie
ss
years
Carbon dioxide emission(thousand millions of tonnes per year)
20
10
1860 1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990
years
1860 1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990
15.4
15.0
14.6
Temperature of Earth's atmosphere (C)
How to analyse
the
information?
years
Carbon dioxide emission(thousand millions of tonnes per year)
20
10
1860 1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990
years
1860 1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990
15.4
15.0
14.6
Temperature of Earth's atmosphere (C)
Evidence for global
warming?
Evidence against global
warming?
years
Carbon dioxide emission(thousand millions of tonnes per year)
20
10
1860 1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990
years
1860 1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990
15.4
15.0
14.6
Temperature of Earth's atmosphere (C)
Further information?
People at stake
Views Attitude / standpoint
Values
Scientists Global warming – abnormal weather, loss of land, extinction of organisms
Reduce use of fossil fuels;exploit renewable energy sources
Balance of ecosystem(environmental)
Scientists(alternative view)
Crops grow better No sufficient evidence to support global warming
Power station
Cheaper electricity with coal
Other ways – not cost effective
profit(economic)
AgricultureFurniture manufacturerGreen groups, citizens,Councillors, government officials
Environmental; ethical Economic Political
People at stake
Views Attitude / standpoint
Values
Scientists Global warming – abnormal weather, loss of land, extinction of organisms
Reduce use of fossil fuels;exploit renewable energy sources
Balance of ecosystem
Scientists(alternative view)
Crops grow better No sufficient evidence to support global warming
Power station
Cheaper electricity with coal
Other ways – not cost effective
profit
AgricultureFurniture manufacturerGreen groups, citizens,Councillors, government officials
Environ.EconomicPolitical
多角度思考 ( 跨科目 )
培養正面的價值觀和積極的態度
作出有理據支持的判斷、決定
多角度思考 ( 跨科目 )
培養正面的價值觀和積極的態度
作出有理據支持的判斷、決定
Development CompassEffects on the environment/ecology/weather? Solutions?
How to consult?
How to balance the interests of different groups?
How to reach a consensus?
Who makes the decision?
The cost?
Economic development? Quality of life?
Views of different parties of community?
Social problems?
How to cope with global warming?
Natural
Who decides?
Economic
Social
Acid rain
Air pollution
Disposal of solid wastes?
Building incinerators? Tax on plastic bags? Policy to reduce waste production?
Ozone depletion
Renewable energy
How to ensure sustainable development?
Development Compass
酸雨問題
Natural
Who decides?
Economic
Social
空氣污染焚化爐膠袋稅落馬洲支線
塱原濕地與可持續發展塱原濕地與可持續發展
Development CompassDevelopment CompassHow is the bypass changing the environment?
Who decided to build the bypass?
What influenced them?
Were the residents consulted?
Who is paying for the bypass?
How will it affect the interest of the residents?
Who will benefit from the bypass?
Who will be disadvantaged by it?
Building a bypass across Long Valley
Natural
Who decides?
Economic
Social
How could it landscaped?
Activities based on Texts or VideosActivities based on Texts or Videos
e.g. understanding & discussion guided by
questions
- Particularly useful for issues related to
biotechnology, health & diseases.
e.g. issues on test-tube babies
Role play/debateRole play/debate – for controversial issues
GM food – consumers and labelling? e.g. 城市論壇GM organisms
Vaccination – pros and cons
Application of DNA technology, Human Genome Project
Patients – Rights & responsibilities
Drug testing using humans & animals
Man cleared by DNA tests was freed after 17 years in prisonLonnie Erby was convicted of raping three girls in 1985. He was sentenced to 115 years in prison. After Erby had served 17 years in prison, a DNA fingerprinting analysis of preserved semen taken from the victims was performed ….Judge Jimmie Edwards said to Erby, “I’m sorry for your wrongful conviction. As you know, the science of today is not the science of yesterday.”
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