You have received some really great advice. I would reiterate that you need to discover the constraints on the teachers and the practices at your school and district first before you go on the offensive. For DS (incoming 9th grader), his wonderful Kindergarten teacher actually explained the constraints regarding math instruction to him directly, which I did not find out about until months later. I was never involved in the math conversation although we discussed his verbal ability and the fact that she already ear-marked DS for the unofficial all-GT first grade class (one out of six classrooms) in January when those decisions are usually made in May. In second grade, I went to his teacher directly and she explained why she could not differentiate but suggested a grade skip and we ended up doing subject acceleration in math (3rd grade GT, which compacted 3rd and 4th grade math).
