Originally Posted by twallace
She excelled, both academically (scored highest out of her bright class in math) and socially. She was assertive, cheerful and fit in perfectly. The school wanted to accelerate her with the same class, but because she was already on the young side, we wouldn't allow it.
Posts on acceleration and the Iowa Acceleration Scale (IAS) may be of interest.

Kids need appropriate challenge and intellectual/academic peers.

Originally Posted by twallace
She re-did kindergarten in a different school, and became shy again and unhappy. When we ask her about it, so describes feeling anxious about being more advanced than her peers. I think she doesn't relate to them.
I may be missing something... what was the purpose of changing schools?

Originally Posted by twallace
Any ideas how to 1. get a 6-year old to feel confident in knowing things her peers do not, and 2. Working with the teacher?
Like it or not, some may say you need to own your decision to not accelerate your child with the peers she was a good fit with.
1. Explain declining the acceleration to your daughter
2. Explain declining the acceleration to the current school
Let them know what your decision was based on at that time, and serve with side of "... if I knew then what I know now..."
This may help all move forward.