I am struck by a couple of things reading this ABQMom. First, your DS sounds like an awesome kid. You should be very proud of him. (I'm sure you already know that but I needed to say it.) Second, I think your science teacher is going to turn out to be great for him. Third I am reminded of DeeDee's "voice" saying over and over on these boards that we 2E parents have to educate school personnel. That part gets so frustrating, so exhausting but when done well it reaps so much benefit for our kids. I am not sure that your principal is actually nursing a grudge. Maybe she just felt that clue bat hitting her between the eyes and she needs some time to process it. I think it is essential that you request an IEP meeting and amend your documents to reflect how this situation should have been handled. It clearly reflects WHY your DS's accommodations are there and what happens when those supports are removed. You have the upper hand coming out of this mess - I would seize the opportunity to use it to smooth your DS's road moving forward.

Great job to both you and DS!