Last year I taught one class of 18 Pre-Kers. This year I will have a morning and an afternoon class. Each class will have 18 kids. Is there anything I need to keep in mind having 2 classes sharing the room? I've thought of things like nameplates (still don't know what I will do) cubby tags etc. But I can't think of anything else that I really need to do differently from last year. I know I'm overlooking things!