A Rube Goldberg machine does not really look like it would make work easier. Introduce your class to Rube Goldberg with a resource that shows how his inventions make simple tasks harder to complete. 

Through a five-lesson series with five hands-on activities, students are introduced to six simple machines - inclined plane, wedge, screw, lever, pulley, wheel-and-axle - as well as compound machines, which are combinations of two or...