I wouldn't want to advocate in a group unless I was sure that the other kids are actual peers. All of the kids who I thought were my DS's level actually aren't, and not even close honestly.
If the other kids are real peers, you have a bit more of a case, but I'd be very reluctant hearing everyone's different goals.
My son has a twin in his class IQ wise. When I go in and volunteer for math centers I slip the two of them real problems on the side and they love it.
Which still isn't to say though that his mom and I have the same solutions in mind. At all. But yeah it would be even harder if the kids weren't at the same level.
