What didn't work?

Not accelerating DD because she was small (10th percentile height in K). Although in my defense, I'd read that seeing the age group your child is drawn to is a good way to determine their social level. She played "down". Although now I know that was because in her multi-age classroom the creative, musical children were younger. Now, in HS, she makes friends with the upper classmen faster than her own grade level.

Also, it didn't work to trust the public school to understand that even a high achieving child can have a learning disability.