Thanks to all of you for the advice on documenting things in case we need to use this issue in the future - or in case we have to escalate now. I will wait a day to give her time to catch up on her email (the first was sent last Friday, the second this morning). If I haven't heard by Thursday, I will email her again and include the emails I already sent and cc the principal and the special ed chair.
I talked with my son about it, and he said for him it really matters that she gives him credit for the work he did. So he would like me to push on this if the teacher doesn't respond. He said that it would matter to him, because he didn't want to have an F in a class that he didn't deserve the F. He said if he'd messed around and not turned in the work, he'd accept the F and the fact that he'd need to do summer school. Since it matters to him this much, I need to back him. I can rationalize that he moves on to 7th grade with or without the F, but I can't rationalize that to him.
