1.Before you can solve any problem, what are two things you must know? 2. During the research and brainstorm step of the design process, how can the creativity of the participant students be sparked? 3. When designing a solution, what do you do once you’ve settled on an idea to develop? November 1, 2009 U3b-L4 1the heart of the problem and constraints placed before you 2there are know bad ideas know matter how crazy it seems 3prepare detailed drawings and engineering plans and solicit feed back Write each question and use notes from yesterday to answer.

The Engineering Design Process PURPOSE OF LESSON To enable students to understand and apply the design process. U3b-L4

Clearly Defined Steps: 1. Defining a problem 2. Identifying criteria and specifying constraints 3. Brainstorming 4. Researching and generating ideas 5. Exploring possibilities 6. Selecting an approach 7. Developing a design proposal 8. Making a model or prototype 9. Testing and evaluating the design, using specifications 10. Refining the design 11. Creating or making it 12. Communicating processes and results U3b-L4 ENGINEERING DESIGN PROCESS

U3b-L4 1.Describe the situation that needs a technological solution a.What must your solution accomplish? b.What is the need or desire? Step 1 – Defining the Problem Outcome: Sentences, Paragraphs, Lists

2.Establish the criteria and constraints under which the solution must operate a.What are solution requirements (criteria)? b.What are the limitations on the solution (constraints)? Step 2 – Identifying Criteria/Constraints Outcome: Sentences, Lists, Charts U3b-L4

Gather information – obtain background information needed to begin developing solutions to the problem/situation a.What specific information do you need to know prior to designing your solution? b.What criteria/constraint details must you be informed about? Steps 3 & 4 – Brainstorm/ Research/ Generate Ideas Outcome: Sentences, Paragraphs, Lists, Charts

U3b-L4 5.Develop possible solutions to the problem/opportunity a.Come up with at least 3 solutions to the problems you must solve b.General sketches, then detailed sketches c.Does each satisfy the criteria and fit within the constraints? Outcome: Sentences, Lists, Charts, Sketches Step 5 – Exploring Possibilities

U3b-L4 6.Isolate, refine, and detail the best solution a.Modify b.Integrate components c.Improve d.Detailed sketches Outcome: Sentences, Lists, Charts, Sketches Step 6 – Select an Approach

U3b-L4 7.An explanation of your final design a.Detailed drafted drawings b.Steps to make it c.Explanation of how it satisfies all criteria and constraints Outcome: Sentences, Lists, Charts, Sketches Step 7 – Develop Design Proposal

U3b-L4 8.Make it! Prototype will be tested Outcome: Sentences, Lists, Charts, Sketches Step 8 – Make Model/Prototype

9.Once you make your prototype, test it to ensure that it works. Also, calibrate your prototype to satisfy criteria and constraints. DOCUMENT YOUR TESTING PROCESS and RESULTS Step 9 – Test Model/Prototype U3b-L4

10.After testing in step 9, document any changes you need to make. Step 10 – Refine the Design 11.Implement any changes decided upon in step 10. Prepare for the competition. Step 11 – Create/Make it U3b-L4

12.Describe how the final solution meets design criteria and constraints. FINAL COMMUNICATION REPORT Step 12 – Communicate Processes and Results U3b-L4

MOUSE TRAP CAR? Design Project #1 Objective: To enable you to understand and use the Engineering Design Process

U3b-L4 Complete steps 1-4 of the “mouse trap car” project. Follow the rubric to ensure a high score. CLASSWORK / HOMEWORK