I started to seriously advocate at age 9 (DD10 will turn 11 next month). A friend of mine just started testing her DD11 in preparation of middle school and high school. It is not too late and now that she is frustrated/bored at school, it is important to find out why.
I would suggest starting with testing to know where she is at and what kind of accommodation is needed. Your school should understand the Explore scores since they use the test for higher grades. IQ testing would be great in conjunction with achievement testing to get a full picture of your DD.
DD was not a math type of kid but as we have skipped her twice now, her interest in math has improved significantly with appropriate challenge. Sometimes when a topic is too easy and repetitive, she tunes out. This might be the case with your DD as well.
Jen
