Lol! On the surface, it does seem a bit funny that one would rig up a teleprompter system to deliver a speech to a bunch of little kids, but in reality, all of the presidents used some sort of visual aid when delivering speeches. The only difference is in the method or technology.
Reagan used teleprompters, GW used large index cards. Apparently there is a knack to using teleprompters that some people are just not comfortable with.
Here is an article that sheds some light on the issue:
http://www.cbsnews.com/blogs/2009/03...y4848259.shtml