My heart really goes out to you! We were in that position last year in Kindergarten with my DSthen6. He was just *angry* at home, at school he was fine.
The same here, except that DS was 5 at that time. He was in Montessori and even though he was doing things above K and was there only 1/2 day it wasn't enough. His biggest meltdown was 2 weeks before he asked to be homeschooled. Things did get better he got more challenged but it still wasn't enough.
We are hs now and he is a happy kid this year.
I think I understood more what a caged animal felt like in that 3 months when we were fighting with the school than I ever have before. Because DS *was* a caged animal, he paced at school, biding his time, and then he lashed out at us for putting him back in the cage over and over.
Look at the cage first only then try to change the animal.
