One teacher finds that seating ADD students in the back of the classroom helps everyone.
"Conventional wisdom is that kids with AD/HD should be seated in the front of the classroom. However, I've found it's sometimes better to seat them in the back. In the front, ADDers tend to be the "stars of the show" - acting out to entertain friends. In the back, they can stand and stretch, if needed, without blocking anyone's view."