Hi Waits,
I think you are in the right place to start. Let's see: Is she in kindergarten? Are they learning the alphabet and three-letter rhyming words? At home is she reading The Magic Treehouse? Are her friends outside of school mostly a bit older or have close interests in common? Does she play with math at home, and they are learning to count at school?

If so, sounds like a sensitive, self-aware, highly gifted kid dropped into an environment completely out-of-synch with her needs. There are a ton of articles around and threads here. Some sympathy for the teachers involved... at a 150 IQ, that is less than 1 in 1000 kids: so a teacher teaching 25 kids a year for 40 years on average will have one student in your daughter's range in their whole career.