Theme: Sports Science Title: “Skateboard Design and Construction” QuickTime™ and a decompressor are needed to see this picture. Overview: Riding a skateboard can be taken for granted. The technology and consideration of materials that have gone into making the final product has been substantial. All things have been considered: weight of materials, energy transfer, cost, material location, etc., to provide the best product for your money. This lesson will look into some of those considerations – why it was designed and how it was constructed. This lesson is about the anatomy of a skateboard. Grade Level: 9-12 Subject Matter: Physics Engineering Science and Technology Duration: 3-5, 50-minute lessons National Standards Addressed: Science and Technology Abilities of technological design Understandings about science and technology Objectives: By the end of the lesson, the students will be able to: Identify the necessary materials that go into skateboard construction. Specify why a skateboard is designed the way it is. Outline how a skateboard is constructed from raw materials to the final product. Materials: Computers Internet access Disassembled skateboard Procedure: 1. Hook 2. Skateboard Materials a. Brainstorming activity i. To do this activity ask around and see if you can obtain a skateboard from one of your students. Disassemble the skateboard (or have the student do it) down to the deck, trucks, and wheels. ii. Pass out the three parts to three large groups in your class. Assemble the large groups ahead of time. iii. Have the students brainstorm/contemplate the following: 1. What kinds of materials make this up? 2. What processes were involved in making this? 3. Devise a plan to construct the item you are holding. iv. Have your students write their results on a whiteboard and share them with the class. b. Pass out the handout entitled “What’s is a Skateboard.” c. Students should work alone or in pairs depending on how many computers you have available to you. d. Throughout this lesson provide a means for the students to listen to the Pulse of the Planet programs. 3. Skateboard Design a. Start this portion of the lesson by asking the following questions: i. (hold up the deck) Why is the deck curved? What purpose might that serve? Listen to answers. ii. (hold up the trucks) How can you steer a skateboard with these? Listen to answers. iii. (hold up the wheels) Why does this material give skaters a better ride/”feel?” Listen to answers. b. Hand out the assignment entitled: “Skateboard Design.” i. Describe the assignment to the students. ii. The students may work in pairs. iii. Establish a due date. iv. Provide at least one full period to work on it in class. This will provide time for you to answer questions and give direction if needed. 4. How a skateboard is made Handouts: What’s In a Skateboard Answer the following questions. 1. The three parts of a skateboard are ________________, __________________, and ______________________. 2. The average dimensions of a skateboard are: _______ x _______. 3. The wheels range is size from _____ to _____ and are made out of ______________________. 4. What are skateboard decks made out of? 5. Why is maple wood the consistent choice for skateboard decks? 6. How many plies of wood are used to make a deck? ____________ 7. What are “trucks?” 8. What are trucks made out of? 9. What is grip tape used for? Resources Pulse of the Planet program 4361: Skateboard 101 http://www.madehow.com/Volume-6/Skateboard.html http://www.exploratorium.edu/skateboarding/skatedesign.html# boards http://www.skatewarehouse.com/skateology.html http://en.wikipedia.org/wiki/Skateboard Skateboard Design Deck Design Write a (bulleted) list of facts about the design of a skateboard deck. Use a separate piece of paper. Use the following list of words and phrases to guide you: curvature, concave, strength, plan form, symmetrical, longboards, retroboards, Maplewood, ply vs. waffled wood, sizes vs. purpose/age. Resources Pulse of the Planet program 4366: Skateboard - Waffled Pulse of the Planet program4363: Skateboard - Wood http://www.exploratorium.edu/skateboarding/skatedesign.html# boards http://www.warehouseskateboards.com/howtobuy.asp http://www.skateboarder2.com/ Wheel Design Write a (bulleted) list of facts about the design of skateboard wheels. Use a separate piece of paper. Use the following list of words and phrases to guide you: durometer (hardness durability, speed), nylon, size, urethane – pro’s & con’s, dye’s vs. pigments, deformation, hard vs. soft, rebound factor. Resources http://www.exploratorium.edu/skateboarding/skatedesignwheel. html http://www.warehouseskateboards.com/howtobuy.asp http://www.skatelog.com/wheels/specifications.htm Truck Design Write a (bulleted) list of facts about the design of skateboard trucks. Use a separate piece of paper. Use the following list of words and phrases to guide you: baseplate, hangar/axle, bushing, pivot point, kingpin nut (tight vs. loose), durameter, energy dispersion, impact. Resources http://www.exploratorium.edu/skateboarding/skatedesigntruc k.html http://skateboard.about.com/od/skateboardingdictionary/g/Gl osTrucks.htm Construction of a Skateboard Objective: Understand how a skateboard is assembled by writing a how-to manual for constructing a skateboard. Final Product: a “manual” on how to construct a skateboard from start to finish. The how-to manual should include: Materials list Mention of the type and location of the wood. Construction of the deck o Veneer/plies o Glue o The machines used and the process to form and trim the deck o Sealer Construction of the trucks o Sand molds o Aluminum ingots o Assembly of the trucks: Kingpin Pivot cup Risers Baseplate Construction of the wheels o Mixed polyurethane o Curing o Lathing o Artwork Assembly of the skateboard o Application of grip tape. o Attaching the trucks o Bearings and wheel attachment Resources Pulse of the Planet program 4363: Skateboard - Wood http://www.youtube.com/watch?v=cx2qfpk_n8s http://video.google.com/videosearch?sourceid=gmail&q=how +a+skateboard+is+made&um=1&ie=UTF8&sa=X&oi=video_result_group&resnum=5&ct=title# http://www.madehow.com/Volume-6/Skateboard.html o Please cite all resources at the end of your manual. o If different sites are used for this manual, please reference them at the end of the manual. Additional Resources Web Sites Kids’ Science Challenge (click on the skateboard at bottom of page) – Pulse of Planet http://www.kidsciencechallenge.com/ Skateboard FAQ’s – About.com http://skateboard.about.com/od/skateboardingfaq/f/ How Skateboarding Works – Howstuffworks.com http://entertainment.howstuffworks.com/skateboarding.htm The Basics of a Skateboard – Howstuffworks.com http://entertainment.howstuffworks.com/skateboarding1.htm How to Build a Complete Skateboard – Dick’s Sporting Goods http://www.dickssportinggoods.com/info/index.jsp?categoryId=524107 Createaskate.org http://www.createaskate.org/ Video Skateboarding (webcast) – Exploratorium.edu http://www.exploratorium.edu/skateboarding/webcast.html Skateboard Videos (skate ollie, finger board, skate factory) – Kidsciencechallenge.com http://www.kidsciencechallenge.com/ About the Create a Skate Program – Createaskate.org http://www.createaskate.org/about_where.php Make a Skateboard – Youtube.com http://www.youtube.com/watch?v=CGjG0UWJVOs Learn the Basics of Setting Up a Skateboard – Youtube.com http://www.youtube.com/watch?v=VfQ6IcGOSJw&feature=related Step By Step Guide to Making a Skateboard – Roarockit.com http://www.roarockit.com/stepdemo.php Audio “My Fellow Americans: Barbara Odanaka, Skateboard Mom” (1/14/05) - NPR http://www.npr.org/templates/story/story.php?storyId=4283628 Other Skateboard Projects (PDF) – Pulse of the Planet / Kids Science Challenge http://www.kidsciencechallenge.com/pdfs/KSC_ScienceProject_Skateboard_200 8.pdf Special thanks to the following scientists for their help with this project: Pulse of the Planet Programs: 4361 Skateboard 101, #4363 Skateboard - Wood, 4366: Skateboard - Waffled Paul Schmitt Founder, CreateAskate.org Header Image Name: Skateboard Clip Art 1 Credit: PDClipart.org