Taming the Screw or "Lever Me alone...I'm Working" With a Big Enough Leaver...I could lift the World.

An integrated interdisciplinary thematic unit on force, motion, and simple machines for Grade Four. There are forces acting all around you. When you rollerblade, gravity holds your skates and you to the ground. Friction makes it possible for you to slow down when you hit the brakes. The speed with which you move your skates determines how fast you get from place to place. When you work to get from place to place using your rollerblades, simple machines, such as the wheel and axle in the skate hlep make your job easier. This unit will teach students how and why Force and Motion are essential to everyday life, and that simple machines improve and conserve the amount of energy we exert when we complete a task.