an educational assistant was assigned to watch over him during science only....
I received an email yesterday letting me know the EA would be checking daily with the teacher and would be pulling my son out twice a week to work with him in the library on vocabulary. ... So here is my question - can the school just implement new rules and pull him out of classes on his IEP without my permission or input?
No. The newer IEP forms are very strict about where services are to be delivered (in the regular classroom vs. as pullout) and the school staff are supposed to adhere strictly to what was agreed to by the team.
I'm to the point I think I need to involve the school's principal
Seems likely. You can just say nicely the reasons why you think the pullout is appropriate and seek to clarify together as a team what the EA's tasks are. If need be you can call a new IEP meeting.
aOn a good note, I discovered that our district now has a Twice Exceptional Coordinator.
THAT is remarkable. Glad you'll have someone who can help you advocate!
DeeDee
