Twinkletoes: We have been in the same situation. The principal said the same words to us: our school is filled with kids like your son, we never accelerate, your son needs to be with his age-mates. BUT, finally this year in 3rd grade, the principal acknowledged that DS's academic abilities are far greater than most other gifted kids in the school. I was shocked because it seemed to come out of the blue. I hope you do not have to wait til 3rd grade for a similar acknowledgement.

Hopefully, having the gifted coordinator come in to observe and give opinions and recommendations to the teacher and principal will help your daughter. For us, the school is a gifted school, so of course everyone in the entire school is a gifted expert...how could a parent have information even CLOSE to what they all know?
Don't feel guilty, you are your daughter's advocate. You did the right thing!