I'm with Lorel. It sounds like the teacher is telling you to find another school.

You could try meeting with her, but I doubt it will help. If she were unaware of his abilities, you'd have a shot. But she knows what he can do; she just doesn't see her job as being to teach him. Her basic sense of purpose as a teacher is incompatible with your child.

That sounds like an unfixable situation to me, I'm afraid.

Kriston