Tired of a kid raising their hand, getting excited that they're going to ask a relevant question, then being disappointed that they just want to ask to go to the restroom or hallway? Fear no more. Here are 4 posters (3 hand signals) to post on your walls in order to teach the kids to use these SILENT signals so you know what they want.
Restroom: ASL for R
Locker: ASL for L
Water: ASL for W
When I was in 2nd grade, we had a deaf student in our class and our teacher taught us that we should do this. I teach 7th grade and they respond so well to this as well.