Rodney

You might want to check out what he learned or didn't learn in Montessori, and how achievement was measured there. Sometimes kids from Montessori and Waldorf schools don't do well when they transition to traditional schools. For one thing, they don't _have_ exams in a lot of these schools. You demonstrate what you know by demonstrating your knowledge in a way that you have a lot of control over, and it's not competitive. He may simply reject the idea of exams. Start talking with him about how things were done in Montessori and try to help him make a connection between how achievement is measured there and how achievement is measured in his new school.

I'm of the opinion that a child psychologist or family therapist should be called, but you asked what you can do, and this is my suggestion.