Students role-play as engineers designing wedge tools. They devise methods for shaping quarry rocks into pyramid blocks. Following a teacher demonstration, they use materials such as soap, clay, and foam for blocks and wood, plastic,...

Fourth graders examine the simple machine known as a plane. They build their own pyramid and identify the role of screws. They participate in a hands-on activity in which they determine the angle in which to make it easier to pull.

High schoolers observe the cracks in school walls and pavements. In this geometry lesson, students explore the factors to be considered before building a structure. They complete a graphing and calculation worksheet after the...