My 4 year old has been acting out since he switched preschools two weeks ago. He was Norns 3 months premature and has an IEP for adaptive skills and behavior. Atbhis other school, where he was for two years, his behavior had gotten so much better. He only had one incident of hitting in four months. Smiley faces each day on his behavior sheet! Now he has been hitting, refusing to listen o his teachers, and getting bad behavior notes every day. Today he put hands on a boys throat, and pushed him down when the teacher told him it was time for nap. I don't understand where this is all coming from. Any advice?