Why does he need Equatio for SAT? Does he work out his problems with Equatio? Or does he use it to make it legible for grading? In which case he'd need it for AP, but not for SAT.
He simply cannot handwrite. It's not just that it isn't legible he just can't make the letters and especially numbers - they are backwards and he ends up spending all of this cognitive load on trying to make the symbols instead of doing the problem. I am just wondering does the SAT even test on that high of math? Prior to Pre-calc he has been able to get by mostly with certain math keyboards. Anyway, he has been using assistive tech for math and all subjects literally for years. It is all documented in his ieps, which he has had since first grade. So this is not a 'sudden' or new thing with him and that is very clear in his documentation so, hopefully, that will make things go more smoothly.
