That goes on a lot in many school. It not abnormal at all. Base on class size, gym classes, and health classes cause a rearranging classes around. For example the 6th grade girls are having a special class on female health and the speaker can only be there for 2 hours. So those two hours when the boys also have health class is being change to gym classes so the girls gym class can have the classroom for health class.
Tags: Boys, Gen, girls, locker, Using