Mike Dallmer from the South Jersey Kite Flyers group sent out a link for the NASA Kite Site. 

According to the site:

 This site was prepared at NASA Glenn by the Learning Technologies Project (LTP) (http://www.grc.nasa.gov/WWW/K-12) to provide background information on kites as teaching aids for math and science teachers.    

 Just to get you started quickly, check out the kite index to see a list of different lessons.