2. Table of Contents Unit 1- Understand the Problem Unit 2- Gather Information Unit 3-Develop Solutions Unit 4-Implement a Solution Unit 5-Test and Evaluate Unit 6-Redesign and Communicate

3. In this activity, you will. -Consider how you could redesign your solution. -Calculate the average speed of your race car. -Communicate your solution and speed calculations for the CO2 Race Car Design project.

4. DO: Get Form 6-1: Improve the Solution. DO: Write a technical report explaining how you could improve your race car solution. Make sure to answer the following questions. -Based on your observations, what changes could you propose to make to your car? Why? -How will these changes affect your race time and performance?

5. Speed is the distance an object travels in a set period of time. You can calculate the average speed that your race car traveled. The formula you can use is: Average speed equals Distance divided by Time. Let’s say the distance of your track is 65 feet, and your race time was 2 seconds. So we apply these numbers to the formula: -Average speed= 65 fees / 2 seconds -Or Average speed= 32.5 feet per second The average speed of your car was 32.5 feet per second. Wow! That’s fast.

7. DO: Get the speed calculations form. (6-2) DO: Under Distance, record the length of the race track. (23 ft) DO: Under Time, record your car’s AVERAGE race time. DO: Divide the distance of the race track by your car’s race time. DO: Write the average speed of your race car.

8. Now you want to know how feet per second converts into miles per hour. DO: Follow the directions on the form to calculate your race car’s time in miles per hour.

10. Speed is the distance an object travels in a set period of time. Average speed equals Distance divided by Time.

11. DO: According to your teacher’s directions, share your race car design solution. Explain the positive and negative aspects of your car. (6-1 Improve the Solution)

12. NOTE: At this point in the project, you should have completed all of the work listed on the race car design checklist. DO: Gather all of the items you will need to evaluate your work with the race car design checklist. For this project, you should have: -Your completed race car prototype. -Your race car design checklist. -Your race car packet. -Your race car question packet. -Your top and side views.