Some of this seems like it could be a phase. She's 4, she likes to get her way and she's pressing her luck to see if she can get away with it. We're dealing with that at home, so not surprising it's happening in school too. DS wasn't too different at that age, but I know she needs to get over this before she goes to KG. She was also in a Montessori school since she was 1 y/o and I think she's not used to having to transition between activities so much during the day.
We have a reward system at home with marbles and so I told her she can earn a marble every time she listens the first time. She also earns marbles for a good report from her teacher at the end of the week. We give her choices, too. Anything else I can do to get through to her that she has to listen to her teachers and cannot get her way all.the.time?