ahaf, you've received more great insights from aeh & puffin.
I'll just add that is imperative that you, your husband, and your son are all in agreement. Ideally, this will take the form of both parents supporting the goals of the son. Please have deep and meaningful conversations about this at home, on a regular and ongoing basis, so you can all get in sync and stay in sync as time passes and circumstances change.
As there are a few kids in the district who are twice accelerated in math, but none in this Principal's building... is it possible for your son to attend a different school in the district, where double-acceleration is occurring?
One more thing: having all of your son's scores and records sent to the new school may be quite different than having a teacher at the former school write a letter of recommendation, advocating for a second acceleration to meet his needs.
