If it's any consolation, my DD did JUST this same thing. In fact, I found AFTER she already talked to the teacher about it! She was even very strategic in how she presented it so as to not make the teacher feel bad that she wasn't providing her with what she needs. My DD is the same age as your's too! Gotta love these take charge girls! Her teacher DID respond positively (for a short time) or at least in my daughter's eyes. What she thinks is challenging enough my daughter thinks is a cake walk, but she is trying. We are now in the process of arranging a grade accel. so I think the teacher put it somewhat on the back burner because anything she can provide is still not that challenging, if at all. That would require a total curriculum change. She was trying to offer just one grade ahead but that wasn't cutting it either. All's I can say is, don't dread the meeting. Your teacher will most likely feel proud your DD can express her needs that way and be willing to work with you.