I think part of the difference is the change of schools and guessing more kids at the junior high. I think acknowledgement is different at a younger level. A funny (at least to me)story is my daughter is in 6th grade There was a parents get together at her future junior high. All the different departments heads were there. Afterwards if you had any questions you could talk to them. Guess which head had the longest line waiting to speak to him? The head of PE. Had no problem getting a chance to talk to the Math head.