I'm so sorry that you're going through this and I can relate too.
We are at our second school with my 4 year old who is in Kindergarten. Last year he got labeled the "bad" kid really early and was watched so closely that even when he took a breath wrong they were calling me to come get him.
This year his teacher sends notes home everyday about his behavior. He jumps around the classroom, won't listen, won't focus and on and on.
I can't believe that they say that he's angry because of his pirate ship!!! I think it was a very creative thing to do.
