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Building a Propeller-Driven Vehicle

Lesson Eleven:. Building a Propeller-Driven Vehicle. Think and Wonder.

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Building a Propeller-Driven Vehicle

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  1. Lesson Eleven: Building a Propeller-Driven Vehicle

  2. Think and Wonder What kinds of vehicles use a propeller? What do you know about propeller-driven vehicles? In this lesson, you will use a technical drawing to build a propeller-driven vehicle. How can you get the propeller to spin? What happens when you let go of the propeller? 0

  3. Link to LRB In your Laboratory Record Book: What do you know about propeller-driven vehicles? Write your thought in your LRB. We will use a technical drawing to build a propeller-driven vehicle in this lesson. In Lesson 12 we will analyze its design features.0

  4. Looking at propellers: See how the connected rubber bands attach to the propeller hook. Look at the white connector. How do you think the white connector could be used to attach the propeller to the vehicle? Where on the vehicle could you connect the rubber band? 0

  5. Link to LRB Looking at propellers: cont. What design features would you need to move your vehicle with a propeller? Let’s list our ideas in our LRBs.0

  6. Materials Manager: Please give each of your teammates a copy of the 11-1 technical drawing (from page 48 of your Student Activity Book). 0

  7. Link to LRB Looking at Propellers, cont. • Please glue this technical drawing into your Laboratory Record Book. Then record your answers to the following: • How is this drawing different from the drawing you used in Lesson 2? • How is this drawing the same? o

  8. Looking at Propellers, cont. Did you notice that 11-1 is a THREE view technical drawing? It shows the top and side, but also the front. Why would a front view be necessary for building a propeller-driven vehicle? o

  9. Materials Manager, please collect the following materials from the distribution center: Your group’s bucket of building pieces Propeller unit Safety goggles 3 Connected rubber bands 0

  10. Link to LRB Build your propeller-driven vehicle using the three-view technical drawing. Remember to wear your safety goggles. 3. Try to move your vehicle. Observe its motion. Record your observations in your LRB. 0

  11. Link to LRB Final Activities • Let’s display our completed vehicles.. • What problems did you have building the vehicle from the technical drawing? • In what ways was it easier to build from a technical drawing in this lesson than it was in Lesson 2? • In what ways was it more difficult? • Record your answers in your LRB. 0

  12. Link to LRB Final Activities: LRB responses • Let’s share our observations about the motion and design of your propeller-driven vehicle: • How did you get the vehicle to move? • How did you get the propeller to spin? • What happened to the rubber band as you wound the propeller? • What happened when you let go of the propeller? Why do you think this happened? Record your answers in your LRB.0

  13. Link to LRB Final Activities: LRB responses • Let’s compare: • Look at the axle-driven vehicle like what you built in Lesson 2. I have added a connected rubber band to the axle. • How is the use of the rubber band with the propeller-driven vehicle and the axle-driven vehicle the same? • How is the rubber band used differently? 0

  14. Link to LRB Final Activities: LRB responses • Let’s look again at our brainstormed list “Design Ideas for Propeller-Driven Vehicles” in your LRBs. • Which vehicle design features helped the propeller move your vehicle in this lesson? Add to or change statements on the list on the basis of your observations in this lesson. • You will analyze the design features of your vehicles in greater detail in Lesson 12. 0

  15. Extension Activity: Materials Manager: 3 red dots 3 blue dots 3 green dots One strip of adding machine tape 100-cm tape Safety goggles 0

  16. Link to LRB Extension Activity: Design an experiment to test how far your vehicle will move with various turns on the propeller. We will use 35, 50, 75 turns. Document your findings in a table. Graph your results in Excel. Print your data and your graph.BE SURE to make it small enough so you can glue it into your LRB. 0

  17. Clean up time! Materials Manager: • Label your vehicle. • Return all materials to the distribution centers. 0

  18. Link to LRB Update your Table of Contents 0

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