I don't think you will regain trust and I don't think you need to. It's not the ideal situation (to not be able to trust) but when you're in that mode of not trusting you are continually watching and staying on top of what is going on in the classroom - and that's going to ultimately benefit your dd much more than having a school which mentions none of this, tells you they will help your dd work through her challenges, and drop her off every day trusting that they will be met and then later finding out... things like you are discovering now.
Well put, Polarbear.
Trust is one of those internal states, like fear, that doesn't tell you much about what's going on outside of you. The feeling may or may not be accurately representing the ascertainable facts.
Better to work with the facts: is each need being addressed appropriately? If not, how to fix it?
Hang in there, Pemberley, you can do it.
