My DD was in the "inters" group both weeks. About 18-20 kids in the group. About the same in the younger and senior groups too. My DD felt she learned a ton and that her dance improved. As it was her first residential summer intensive, I believe she also learned alot about being away, getting along with others, etc. The environment was very good for that type of thing. Teaching was of a high level, but not pushy. For us, it was a fantastic introduction to intensives.