This happened to me and my classmates too when we were around 7 or 8. The teacher had an assistant which was an old lady. She would come into the changing room when we were changing. When she left, my friend told me that she was staring at his genitals and that it made him feel uncomfortable and weirded out. At the time, we just thought it was strange because we didn't know what sex was. Looking back now, she might have been a pedophile..
