Here's a thread that might be of some help to you....

http://www.ball-pythons.net/forums/s...ad.php?t=45819

Here's a fun kidzone site that I've used for school presentations (has coloring pages, etc.)....

http://www.kidzone.ws/lw/snakes/activities.htm

As far as the actual presentation, how old are the kids in the class you are going to see? Also have a search through our forums using words like "school", "class", etc. You should find threads by me and other members on various school visits.