Do your students ask to go to the bathroom all day long? I created this bathroom sign and passes to help control the number of interruptions. I sign I printed, folded in half and laminated. I hang it on my white board so students know if they can go to the bathroom or not.
The passes I printed, laminated and cut out. Each student receives ten per week. Of course, you would adjust this to meet your needs. My students keep them in their desk.
It has cut down dramatically cut down on unnecessary bathroom breaks.