Hi, my son has a few challenges beyond the usual---- but one thing that helped for him at school (and he had circle time issues and ran away too) was that the teacher started giving him choices. ie: do you want to sit on the blue square at circle time or do you want to pull up a chair outside the group and sit there. or--- do you want to walk behind Sara or do you want to walk to recess holding my hand? Something about giving kids a little power of choice has a posative effect regarding behavior. Good luck and I hope it gets better. By the way, my son too was a completely different kid at school than he was at home (and still it is like that-----). School is a new enviroment and they are out of their comfort zone.
Maybe he feels left out ,is he new there , have a word with the teacher perhaps she could make more of him so he feels part of the group, my gut tells me he feels left out and thats up to the teacher to show him he's not, so he acts out, same with the running away he gets her attention that way.ask her to focus on his positive side and give him some praise maybe ask him to help her get a book or games that she is going to read or play.
well, he tells them he does not want to do what they r saying to do and he wont do it. they cant get him to. and for an example of the silly things he does is she was reading and he didnt want to sit in the circle with the other kids. when she started to read he started to sing,she got louder so he got louder...u see where this is going. then at recess he instead of standing in line he would run from the teacher. that is the worst thing he has done.
When you say he will not mind the teachers at school, in what way, is it several teachers or one teacher, what is it he is doing ?