Another example of dreams centered around particular areas in schools are those of seeing school lockers. The different manners in which lockers appear in your dreams represent different things.
Seeing your own personal locker signifies issues or information that you don't want to share with others. Opening your locker symbolises your willingness to be open about your feelings.
Alternatively, to dream of breaking into someone else's locker is indicative of your desire and motivation to get what you want.
Paying attention to specific details in your dreams can go a long way in helping you understand their nuances in the personal context.