As a former classroom teacher with a couple of SN kids now, I am so sorry she treated your son like that. There is just no excuse. However, I am not surprised as I have run into a couple of those types back when I taught. If she isn't going to help, what is she there for?? Sounds like she chose the wrong profession. I truly hope things improve for him. Just think of all the kids who do not have a great mom like you to advocate for them. He is very blessed to have you for his mom!