Each school day is either an "A Day" or a "B Day". If one school day is an A Day, the next school day will be a B Day, and so on. The purpose of these names are to switch special classes, like a musical class, which are Band, Orchestra, Chorus, and General Music, and a Physical Education class. On A Days, a student will either have a music class or a P.E. class, and the next day, he/she will have the other one.