My son is 4 ½ and has had trouble in school/daycare since he was 2 ½. He was a biter until he was about 3 ½ and now were having difficulty with other forms of aggression at school. We do NOT see these behaviors at home. Some background information: He hit all of his developmental milestones on time or early. I am a speech language pathologist, so I know for certain that there are no hearing or speech/language delays. He does have sensory processing difficulties (fear of heights/vestibular, loud noises) and it is possible that these aggressive behaviors are how hes handling the over-stimulating environment of school. Also, he is *technically* diagnosed with ADHD, but I am not certain that its simply his age or maturity level or even sensory. He is not on medication. We tried it for 10 days at his pediatricians insistence (she felt like he was severe enough). It worked great for the first week, and then the combination of not taking naps and not eating well sent him spiraling out of control and he was sent home 3 days in a row from school. I just can't do that to him again. Weve had a child development specialist come to his school and she gave recommendations to his teacher (this was at his old school, not his new school where he has started pre-k). She also gave me recommendations for parent-child interaction therapy at home, which I have been doing. The problem is he doesnt HAVE these issues at home with us. At all. We have recently put him in private pre-k because the classes are smaller and the teacher is great, but the same problems are happening. He does not do well with change and transition, and he has a lot of difficulty with social skillswhich we have been working on. His school sent him home the other day for hitting his friends, and he told me this morning that the school day is too long and he wants me to pick him up early. :/ I think were starting another spiral downward if he continues on this path at his new school. How can we stop this? Where do I go from here? Thank you in advance for any help! I'm sorry this is so long! Some things weve tried in the past: Hands are not for hitting book, drawing pictures of his day and talking about how hell handle certain situations, asking the teacher for help when hes upset, finding a place to play by himself or asking the teacher to give him a place. Also, weve done the basic rewards/consequences scenario that only seems to work for short periods of time. Actually, all of these things worked - for short periods of time.