I just wanted to let you know that I am too dealing with almost this same thing. DS9 is currently in 4th grade doing 5th grade math via his gifted self contained class. he scores high on the tests but gets zeros on the work because he too has Dysgraphia and that messes up his numbers when he's "showing his work". I've had to fight hard to get him to do 6th grade math instead which should be implemented next quarter but we'll see. The only thing I can say is to fight for him, and don't stop. And you're not alone...so sorry you are dealing with this.
