A very basic introduction to screws, levers, planes and more.

Create 3D printable models that can help students from kindergarten through grad school learn math, physics, botany, chemistry, engineering and more. This book

How many simple machines do you use every day? Probably more than you realize! Machines make work easier— helping break things apart, lift heavy objects, and

This packet acts as a fulcrum for knowledge, helping with the work of teaching students about simple machines. Explore the effects of these machines with activi

These kids are playing a game, trying to move a person with a simple machine. Which will work better—an inclined plane or a lever? Readers will see them compa