I'm working as a sub in my kids' elementary right now, and I just wanted to say: if you do have a child with an IEP, you may want to point this out to the sub in the morning at dropoff (if you are there). If the teacher lets you know in advance that she'll be gone, ask her to let the sub know about any special needs your child has. I've been at this fairly actively for a couple months now, and only once have I received detailed information regarding special needs, although there are 1-2 special needs kids in almost every class. I can't imagine the sub would have put your child in a frightening/destined-for-failure situation had she know more about him up front.

-- Susannah in NM