I caught a little video of how to make the World's Record paper plane for distance yesterday on Yahoo.  I used it for my 4th grade afterschool class.  They watched video and I explained the directions as well.  Afterwards we went outside and have competitions.  They loved it!!!  It was an easy class.  I happened to catch the video about 10 minutes before class.  Try to search it.  I am sure they will love it. 



http://games.yahoo.com/blogs/plugged-in/high-fliers-5-great-paper-airplane-designs-211731336.html