I have been teching kids ages from 4-14 and I am 14, so I know what ur going though. The little kids do not always lesson. If you are a black blet and the other instructors let you give out push-ups, make the ones being bad do those. Sooner or later they will get the point. You cant be too hard on them, remeber they are only 5-10. There still just kids and like to have fun. Doesnt every one?