Hi Floridama,
I like your plan and will be interested to hear how it works. I've been having similar thoughts lately about my DS6 - he hasn't progressed at all in maths in a year, and not as much as I would have expected in reading/writing. They may only be little people, but I think they can be pretty quick at absorbing subtle messages from teachers/peers about what they 'should' be doing.
But we've got a meeting in a couple of weeks with the principal of a school that's recently been getting a profile for doing good things with GT kids - it turns out his own son is GT, and went to a GT school, so I'm really looking forward to the meeting. Wouldn't it be lovely to be confident that your child's teacher wasn't trying to put brakes on.
bkd