This 9 page poster set can be used post in the class room or to aid in teaching about simple machines.
The set includes posters on the following: lever, 1st class lever, 2nd class lever, 3rd class lever, pulley, wedge, screw, wheel and axle, and inclined plane.
Each poster has a description of what the simple machine is, how it works, and examples of it. Pictures are also shown as examples.
I hope this helps in teaching the basics of engineering and product development. My kids loved this unit. After I taught it we studied Rube Goldberg. The students then created their own Rube Goldberg style machines and video taped it. Way too much fun!