The more I read, the more I think it's just that he's not engaged at school. He's been working on double digit addition for weeks because there are other kids that aren't quite getting it yet. I think he just gets side-tracked because he's somewhat antsy and distractable, but also because he just not that interested in doing things he already knows.
they read books that aren't challenging for him too. We were told by his Dr. that he reads at a 7th grade level or above, but his teacher tested him and has him listed at a 4th grade level.

It's just frustrating to know what your kid is capable of achieving, but only seeing that he doesn't really like school and doesn't seem to be interested in what they do in class.
Getting very irritated.