Thank you all for the advice and approaches. I'm happy and relieved to hear that OT can be both a fun and beneficial experience. Good food for thought Portia Polarbear and Kathleen'sMum. I notice his anxiety and stronger response to triggers seem to go together. I suspect that the transition to/ from preschool and summer program is difficult for him too and that may be part of it. He's very sensitive to new kids coming and established relationships degrading when friends leave. Also the expectations and activities are different with the fun summer extras - some of which were both really fun and stressful for him at the same time. I've been satisfied with the new teacher this year but not sure the assistant has as much patience and consistency. The structure for reinforcement and consequences is different too. I'll try to keep an open mind at least through the adjustment period. Thanks again!