One accommodation that is often ignored, buyt increases acess to what goes on in a classroom tremendously, providing a cue when someone not directly in the student's line of vision is speaking, so that the student knows to turn and look at the speaker. This comes in handy in classes using ASL as the primary communication as well. Although a couple of oralists found it extremely funny, and made tremendous fun of the technique, having a hacy sack ball that is tossed from speaker to speaker so that it can be followed visually is a very effective technique.
