The Glider Design Activity Manual teaches your sudents principles of design, aviation, Newton's Laws of Motion, Bernoulli's Principles and more as they design, build and fly the balsawood gliders that they construct. The gliders are launched by means of the catapult, so the same force can be applied to each glider. Distance and time can be measured to determine which design performs the best-a great activity for a Middle School TSA flight event! Step-by-step instructions take students from first design to a finished glider. 10/pkg.