I have an awesome IEP team that wants to help him. If it's a reasonable request, I'm comfortable asking. The end result might not be as requested, but I'm fairly confident that something rational can be hung on the writing or language goals.

"You see exercises sometimes to find the error in the student's reasoning. How does he do on these?"
The teacher removes these from the tests. I'll have to go back into his homework to see how he does. I think he generally does ok.

"Is he typing the rest of his work, writing it? Is his work spatially organized?"
The answers are being typed into the computer for homework, written on the page for tests. His spatial organization leaves quite a bit to be desired, to put it mildly. Thanks.

"So for goals, it might be something like "show intermediary steps for solving math problems" and methods would be to use a graphic organizer with prompts in the form of steps to choose."
OK, that plus the 3 column structure (not sure I fully understand your explanation, but I've got my own spatial organization I impose on my students...) might be good. It needs to be written generally enough to adapt to the hodge podge of topics they cover in middle school math.