I'm right there with you! We are in the middle of trying a subject acceleration. Once a week my DS goes to fourth grade math. He is doing ok, but is coming across gaps. He does fills the gaps quickly. But the level.of ignorance from EVERYONE except the principal, is astounding. When we tell his teachers, for example, that DS (6!) asked to learn how to figure out the volume of the air in our car tires....and how the volume changes in cold weather....it means nothing to them. The reply is, "then why is he slow multiplying?". They have no desire to nurture his talent and passion.