I think that if the school does not support acceleration then they also have a hard time giving the right level work. Their idea of harder work is more of the same boring work- not more challenging. My ds9 is probably doing work 2 grades higher in math currently- of course that is outside school. He will probably be starting Algebra in the near future. We just started back to dealing with acceleration needs after a very long illness and would be a lot farther along if he had not been sick and set back a couple years. We send our kids to an after school program with predominately Asian children because they get the extra academics. That is where they get their enrichment math. My dd7 also takes Chinese when it can fit into her schedule- it interfered with the math class this year so we picked math as the priority. However in school- the behavior problems in school are starting again because he is BORED. My ds9 reads several hundred pages a day- IN SCHOOL because he gets to read when completing his work- I feel like he sits with a book all day half listening to the teacher and outputting work only when demanded- I could be wrong but it is all way too easy for him. He honestly likes it to be easy but admits he could use more challenge- I can't wait to see him in a school that challenges him DAILY!
I am touring a school Friday that specializes in acceleration kids at their own rate- My gut says he will be going there next year. When I talked to the owner- he said your ds sounds just like mine, this place was made for kids like him.
Good luck getting the academic needs with your dd, I have not found schools to be that successful in the acceleration or even addressing the pull out curriculum well and my kids go to one of the top exemplary schools in Texas that feed into the top public high schools in the state. I hope your are better!