This is for the Middle Primary Class at ISOCS, who were recently investigating force and motion. There was also a live interest in skate boards.
A post on App Advice features an app with a Know Skateboarding web site that gives skate boarding lessons. An advantage of having an iPhone app with tips and videos is that you can have it with you (in a protective case) as you practice on your board.
This video is both a review and an advertisement for the app, and at the end urges you to rush over to the app store and buy it. But there is also a free "lite" version. Give it a try first.
|screen shot from http://www.knowskateboarding.com/|