This is an easy and effective way to establish bathroom procedures in the classroom.
With these Bathroom Break Notification Signs, students are responsible for placing the sign on their desk before going to the bathroom and they place it back (I keep mine on a shelf by the door) when they return to the classroom.
This system gives the student independence to use the sign as they need to (except for when the teacher is teaching) and can help avoid disruptions and accidents :). In addition, for safety, at a glance it is easy to tell for when someone is not in the classroom. In addition, it also serves as a visual reminder to remember who is in the bathroom without having to walk over to check a bathroom log/book.
Signs can quickly be created in 5-10 minutes.:)