High Quality Content by WIKIPEDIA articles! A hall monitor is a student volunteer in American schools who is charged with maintaining order in the school`s corridors. They may be either students who are chosen for the position because they are responsible, or that may be chosen on a rota from all available students. (A dorm monitor, similarly, is a student or teacher volunteer in schools who is charged with maintaining order in a school`s dormitories, i.e. making sure children are in bed asleep and not disturbing others).