technological systems 8 th grade course middle school ctae engineering and technology pathway...
TRANSCRIPT
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Technological Systems8th Grade Course
Middle School CTAEEngineering and
Technology Pathway
Georgia Performance Standards
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Course Description
• Foundational in nature
• Focus on 8th grade
• 7 Standards – ENGR-TS-1 thru 7
• 2-4 Elements per Standard
• Sample Tasks
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Standards• ENGR-TS-1: The students will develop an
understanding of the Universal Systems Model.
• ENGR-TS-2: The students will develop an understanding of how the design process is used to develop a technological system.
• ENGR-TS-3: The students will develop an understanding of how humans interact with systems.
• ENGR-TS-4: The students will develop an understanding of how systems evolve from one stage to another.
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Standards (continued)
• ENGR-TS-5: The students will recognize and be able to forecast trends in the development of technological systems.
• ENGR-TS-6: The students will recognize relationships among technologies and assess the impact of integrated systems.
• ENGR-TS-7: Students will develop leadership skills and work ethics.
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ENGR-TS-1: The students will develop an understanding of the Universal Systems Model.
a) Define Universal Systems Model
b) Identify the components of a system
c) Examine a variety of simple, common systems
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SAMPLE TASKS• Read about Universal Systems Model
• Diagram a given system using the Universal Systems Model
• Analyze and critique the essential elements of a given system
• Discuss relevant current events as related to the systems model
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ENGR-TS-2: The students will develop an understanding of how the design process is used to develop a technological system.
a) Identify the steps of the design process
b) Identify how systems are used in a variety of settings
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ENGR-TS-2: The students will develop an understanding of how the design process is used to develop a technological system. (continued)
c) Illustrate how the systems model is utilized in the production of goods
d) Construct and work with a variety of systems, including Engineering, Electronics, Manufacturing, and Energy
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SAMPLE TASKS• Introduction of the design process
• Identify the applications of systems to devices the students are familiar with
• Create a poster that illustrates design process
• Use the design process to design a product
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ENGR-TS-3: The students will develop an understanding of how humans interact with systems.a) Operate technological systems
b) Maintain technological systems
c) Constructing technological systems
d) Design technological systems
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SAMPLE TASKS
• Read an owner’s manual for a given system and outline the user-performed maintenance tasks
• Sketch a given system, label its parts, write technical directions used to operate device, and list outcomes of using device
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SAMPLE TASKS (continued)
• Design, construct, and test a simple system (i.e. electrical circuit, model rocket, bridge structure)
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ENGR-TS-4: The students will develop an understanding of how systems evolve from one stage to another.
a) Illustrate the evolution of a variety of technological systems
b) Analyze the reason for the evolution of technological systems
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ENGR-TS-4: The students will develop an understanding of how systems evolve from one stage to another (continued)
c) Investigate the cause of system failures
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SAMPLE TASKS
• Examine the historical development of a technological artifact from its beginning to its current state (i.e. audio recording equipment, camera, telephone)
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ENGR-TS-5: The students will recognize and be able to forecast trends in the development of technological systems.
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a) Gathers data and examine trends that lead to technological advancement
b) Propose a creative and futuristic technological system that may solve emerging human needs
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ENGR-TS-5: The students will recognize and be able to forecast trends in the development of technological systems (continued)
c) Design and create a model of a futuristic technological system
d) Analyze the qualities of various futuristic technological systems (i.e. benefits, drawbacks, overall efficiency of system, etc.)
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SAMPLE TASKS• Predict the future changes of an
item
• Research the impact of technological systems on society
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ENGR-TS-6: The students will recognize relationships among technologies and assess the impact of integrated systems.
a) Identify a complex technological system that is made up of several subsystems
b) Explain how the subsystems work together to enable the complex system
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ENGR-TS-6: The students will recognize relationships among technologies and assess the impact of integrated systems (continued)
c) Analyze the qualities of various integrated technological systems (i.e. benefits, drawbacks, overall efficiency of system, etc.)
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SAMPLE TASKS• Identify the relationships among
technological systems used in a complex process
• Choose a complex device made up of systems and subsystems and visually display the integrated nature of the component parts. (i.e., concept maps, graphic organizer)
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ENGR-TS-7: Students will develop leadership skills and work ethics.
a) Demonstrate work ethics within the classroom and lab environment
b) Investigate leadership skills through co-curricular activities
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SAMPLE TASKS
• Modular Activities
• Whole group activities
• Small group activities
• TSA
• Robotics competition (i.e. First Lego League)
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Integrated Concepts
• Reading Across the Curriculum
• Writing
• Entrepreneurship
• CTAE Foundation Skills
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Resources
• ITEA EbD Curriculum Invention Innovation CD Teacher Deliverables (MS Resource CD)
• TSA Curricular Resource Guide
• GETEA Problem Solving Cookbookswww.getea.org Teacher Resources
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Resources (continued)
www.technologystudent.comDesign ProcessGears & Pulleys
MechanismsForces & Moments
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Resources (continued)
www.education.rec.ri.cmu.eduhttp://www.education.rec.ri.cmu.edu/roboticscurriculum/vex_online/main_start.htm
CurriculumRobotics 101
What is Engineering (PowerPoint)Engineering Process (Video)
Engineering Process (Printable)
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Resources (continued)
www.pbs.org/wgbh/buildingbig/lab/index.html
Forces Lab
Loads Lab
Materials Lab
Shapes Lab
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Unit ExampleUnderstanding the Universal Systems Model
What is a System?A group of interrelated parts or elements that function together
to accomplish a goal.
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Unit ExampleUnderstanding the Universal Systems Model
What is an Open-loop System?A control system that has no
means for comparing the output with the input for control
purposes. Control of open-loop systems often requires human
intervention.
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Unit ExampleUnderstanding the Universal Systems Model
What is a Closed-loop System?A system that uses feedback from the output to control the
input.
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Unit ExampleUnderstanding the Universal Systems Model
7 Technological Resources
People
Information
Materials
Tools & Machines
Energy
Time
Capital
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Something that is put into a system in order to achieve a result. The input is often a
combination of the 7 resources of technology.
A sequence of actions that combine resources to produce an output.
The Universal Systems Model
Input Process Output
Feedback
The results of the operation of any system. If the system is working properly the output
will be the desired product or results.
Used to monitor how a system is working. It is only used in a closed loop system.
An open loop system does not have feedback..
Apply the Universal Systems Modelto a simple system.
Unit ExampleUnderstanding the Universal Systems Model
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Input Process Output
Feedback
Examples: Flushing a Toilet
Riding a BikeRinging a Door BellTurning on a LightSharpening a Pencil
Cooling a Room with an Air Conditioner
Unit ExampleUnderstanding the Universal Systems Model
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Apply the Universal Systems Model to Flush a Toilet
Input
A person pressing the handleon the outside of the toilet the tank.
Process
The flap in the toilet tank raised and the water is released from the tank into the toilet bowl, the flap returns to the
closed position. A valve is opened to allow water to refill the tank to a specified depth.
Output
The toilet bowl empties and refills with clear water as the tank refills.
Feedback
This is an open loop system. There is no feedback mechanism in place. An observation can be made as
to whether the system is functioning properly.
Unit ExampleUnderstanding the Universal Systems Model
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Complete the Universal Systems Model Worksheet for an Open Loop System
and a Closed Loop System.
Input Process Output
Feedback
Unit ExampleUnderstanding the Universal Systems Model
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Standards addressed in this UnitUnderstanding the Universal Systems Model
ENGR-TS-1: The students will develop an understanding of the Universal Systems Model.a) Define Universal Systems Modelb) Identify the components of a systemc) Examine of a variety of simple, common systems.
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Unit ExampleHow Systems Work
Part 1: String Cup Telephone
Materials Needed:CupsString
Objective:Students should construct a simple “cup and
string” communication system. Once the system is constructed the students should test the system and record the pros and cons of this system.
CATTs Technology Systems – Unit 1 Lesson 1
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Unit ExampleHow Systems Work
Part 2: Electronic “Buzzer Telegraph”
Materials Needed:buzzer15’ doorbell wire9 volt battery snap9 volt batterypush button switchSmall wire nuts
CATTs Technology Systems – Unit 1 Lesson 1
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Unit ExampleHow Systems Work
Part 2: Electronic “Buzzer Telegraph”
Objective:Students should construct simple system below
to create the “Buzzer Telegraph”.
CATTs Technology Systems – Unit 1 Lesson 1
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Unit ExampleHow Systems Work
Testing:Once the system is constructed the students should test the system by sending a message in Morse Code. Student should then record the pros and cons of this system.
CATTs Technology Systems – Unit 1 Lesson 1
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Unit ExampleHow Systems Work
Part 3: “Hello Operator”
Objective:Using extra wire leads, arrange the system so
that an “operator” group in the center of the room can direct connections between groups. Allow the students to “talk out loud” to the operators as they place calls. Let the operators make a few connections and let the senders transpitt a message.
CATTs Technology Systems – Unit 1 Lesson 1
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Unit ExampleHow Systems Work
Part 3: “Hello Operator” - Diagram
CATTs Technology Systems – Unit 1 Lesson 1
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Part 3: “Hello Operator”
Working in teams students should answer the following questions:1. What additional features does this communication system need to make it “useful” for home use? 2. Identify at least three subsystems used in this model? 3. What subsystems would need to be “substituted” to turn this into a modern telephone system? 4. How has the system evolved?5. What could cause this system to fail?
Unit ExampleHow Systems Work
CATTs Technology Systems – Unit 1 Lesson 1
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Standards addressed in this UnitHow Systems Work
ENGR-TS-3: The students will develop an understanding of how humans interact with systems.a) Operate technological systemsc) Constructing technological systems
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Standards addressed in this UnitHow Systems Work
ENGR-TS-4: The students will develop an understanding of how systems evolve from one stage to another.a) Illustrate the evolution of a variety of technological systems. b) Analyze the reason for the evolution of technological systemsc) Investigate the cause of system failures
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Standards addressed in this UnitHow Systems Work
ENGR-TS-7: Students will explore the nature of leadership skills and work ethics.a) Demonstrate work ethics within the classroom and lab environment.
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