Update! I emailed his teacher and explained everything that has happened over the past two years. She wrote back within 24 hours, on a weekend, and was horrified. I'm not sure if that will translate into actual help for him this year, but at least it was not the total indifference of last year's teacher. She assured me that he was on the list for AIG. And while she would have to do some testing to see how far ahead he was in math, she had every intention of having him where he needed to be within the first couple of weeks of school. Here's hoping she means it!