1. An engineer is, in essence, a problem-solver.
November 10, 2010
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DRILL – Write the sentence and answer True or False
Constraints are new products, systems, or processes that have never existed before.
An engineer is, in essence, a problem-solver.
Feedback is used to regulate or control a technological system.
The capital below is required and must be supplied by students during this unit. Name each:
1. False – Constraints are limits.
2. True
3. True
Protractor
Compass
Ruler

2. UNIT 3 – Engineering Design
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UNIT 3 – Engineering Design
Engineering, the systematic application of mathematical, scientific, and technical principles, produces tangible end products that meet our needs and desires.
BIG IDEA
What is a systematic application of something?
– an organized or established procedure

3. UNIT 3 – Engineering Design
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UNIT 3 – Engineering Design
Getting familiar with the Big Idea
The Design Process
Core Technologies
Mechanical Engineering
Electrical Engineering
Reverse Engineering
Fluid Engineering
Thermal Engineering
Optical Engineering
Materials Engineering
LESSONS

4. The Engineering Design Process
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The Engineering Design Process
PURPOSE OF LESSON
To enable students to understand and apply the design process.

5. Every TECHNOLOGY is developed
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Technology as a System
Technology – performing a by using an object that is not part of the human body.
System – each technology has parts and each part has a with all other parts and to the whole.
Every TECHNOLOGY is developed
through a SYSTEM
task
relationship

6. task system? relationships?
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Car Engine
What is the
it performs?
How is this a
What are the
task
system?
relationships?
1. transfers energy
2. components working in relationship

7. Technology as a System DESIRED / UNDESIRED Components: EXAMPLE: Radar
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Technology as a System
Components:
Goals
Humans develop technology to meet needs
Each artifact meets more than one goal
Inputs
Resources that go into a system and are used by it
Processes
Design Process, Production Process, Mgt. Process
Outputs
Technological systems are designed to produce specific outputs.
Manufactured products, constructed structures, communicated messages, transported people or goods.
Feedback and Control
Using information about the outputs to regulate the system.
EXAMPLE: Radar
Developed to determine the position and speed of aircraft. Major impact on military strategies during WW2.
Today, it contributes to safe, reliable air transportation and predicts the weather.
DESIRED / UNDESIRED

8. A great way to express information is with a Graphic Organizer
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Technology as a System
A great way to express information is with a Graphic Organizer
HOW DO WE ALTER THINGS IF IT DIDN’T?
HOW DO WE KNOW IT WORKED???
Technological system:
GOALS
& Control
FEEDBACK
INPUTS
PROCESSES
OUTPUTS
GOALS

9. EXAMPLE Goal: create a system to send new, sealed CDs to Wal-Mart.
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EXAMPLE
Goal: create a system to send new, sealed CDs to Wal-Mart.
Inputs: People, time, capital, energy, etc.
Processes: design, production, management
Outputs: CDs
Feedback:
Do the CDs work?
Are they sealed correctly?
Do they break easily?
Control:
Straighten printing of labels
Pay workers appropriately
Buy better conveyor belt motor

10. HOMEWORK On a clean sheet of paper, write complete sentences:
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HOMEWORK
On a clean sheet of paper, write complete sentences:
In what ways is technology a system?
List and describe the five major components of a technological system.
Select a technological device that you use and complete the following:
Device:
Major Inputs:
Processes: Design, Production, and Management
Desired Outputs:
Undesired Outputs:
DONE ALREADY