I'm catching up on my thread reading, and hoping that things have improved for your little one this past month.
May I suggest a route we took? I went to the superintendent and when that didn't get us anywhere, I filed a formal complaint with the state TAG coordinator. I realize this is somewhat drastic but we were at our wits end. And it did have a benefit for all gifted kids in our district.
It's not all roses but things have improved - slightly. And we did get accommodations and a grade skip for ds (had already sent dd to private).
Sometimes you just have to give them a kick in the rear.
