You've received great information above; many parents provide learning opportunities outside of school, when the school does not meet a child's academic / educational needs.

Originally Posted By: ahaf
How can we advocate effectively?
A few thoughts:
1) The links and information in this advocacy roundup may be of interest.
2) Some tips for preparing a student for self-advocacy.
3) Would the prior school write a letter outlining their process, decisions, and how well their classes met your son's academic needs in mathematics?