Cola,
Did you just finish the IEP process recently, and did the work that was graded down occur before the IEP was in place?
If the work occurred before the IEP was in place, I'd keep a copy of it just for documentation of the impact of your ds' disability, and I'd look forward rather than worry about what's already happened. Keep an eye out for the same thing happening again, and when it does, first address it with the teacher and then if that isn't satisfactory in resulting in change, send an email to the teacher and the SPED rep on your ds' IEP team with the issue outlined and explaining how it doesn't follow accomodations/etc outlined in the IEP, if that doesn't produce any change, call an IEP meeting.
If it is grading that has occurred since the IEP has been in place, I'd call an IEP meeting now.
The other thing I'd do first - no matter when this happened relative to the IEP being in place - is to talk to the teacher about it (if you haven't already), and follow up with an email to the teacher summarizing the conversation, what you brought to her attention and her reply and any follow-up or conclusions you both agreed to.
You are probably thinking, what's the point, the teacher is set in her ways and not going to bend. Probably true - but what you are doing and what you *need* to be doing is documenting what is happening - in writing. Every email you send is a document. Save the pieces of graded work from class as documentation. When you approach the teacher to discuss, when you call a team meeting as needed etc, you are completing the second part of what you need to do - show good faith in advocating and following through. You'll be the person who will probably be most responsible for insuring the school follows through on the IEP. The SPED resource staff and your ds' teacher should be responsible, but it sounds like his teacher isn't going to be. By proceeding in a logical manner, documenting everything, and communicating as necessary in a timely manner you are going to be doing your absolute best to be sure your ds has the services and accommodations delivered that are outlined in his IEP.
Best wishes,
polarbear
