June 24, 2009
The class went to work on building the projects with instructions.
roller conveyor
crane
Pawl and ratchet is an important idea for keeping motion one direction.
Pulleys can be used to change speed.
motorized chair
Balloon Cars
See how far you can make a car go using a balloon.
http://www.marshall.edu/LEGO/lessonplans/BalloonCar/BalloonCar.html
