In a Boing Boing post dated 2-18-06 University of Chicago researchers advised students whose teachers hand-wave learn more, and that when the hand gestures illustrated a point to one side of the main point, they did even better.
I wonder how much of my tax money was spent to fund this little gem?
Anyone with half a brain knows to point at things as your teach. How else are you going to get their eyes open and on you or get their head out of their bookbag or pocketbook while they textmessage someone?
Heck, I even bang on the board at times, and have been known to dance a little jig when necessary.
Follow the link at the Boing Boing article for the whole thing.