This Simple Machines IV - Wheels and Axles lesson plan also includes:
Youngsters are introduced to the basic principles and uses of the wheel and the axle. They come up with every day examples of simple machines and look into why the wheel and the axle are best-used as a paired machine instead of used independently. Pairs of learners construct wooden cars out of kits (that must be purchased to implement this lesson), and test them in a variety of ways.
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