First, I wish that especially lower-elementary teachers would not cover every inch of wall space with a letter, number, map or something colorful. I have a hard time concentrating when talking w/the teacher!! My sensitive dd is even more distracted!!
Also, for Kindy, I think the teachers should really pay attention to where the child went to preK/preschool. My dd was at Waldorf, where they do not teach letter/letter sounds or numbers. So when my dd started Kindy, they felt she needed remedial help w/her letters. The reality of it was that she was never introduced the letters in the traditional Kindy format, nor was she ever "tested" on what she knew. She is very smart (now they think she may be gifted) and picked up the letters/sounds upon introduction, but almost ended in the remedial class b/c of the initial testing. If I hadn't explained the Waldorf philosophy this to the teacher she may have been pigeon-holed all year.
Also, dd is very careful and thoughtful w/her work. It often takes her more time to finish it b/c she is thinking through what she is doing and wants it to be perfect. Most of the other kids in the class fly through their work so they can go on w/the next thing. I question how much they "learn" doing that. The teacher was misinterpreting this as she was having difficulty with the work, which couldn't have been further from the truth.
Kids like mine need more time to exhaust the work they are doing. I find the Kindy schedule too chaotic at times. 20 minutes of math?? It takes my dd at least that long to make the transition TO math. I have told my dd that I would rather have a 1/2 way finished picture that's really good than a completed picture that has been thrown together. But, what my dd has learned that it is better to slap something together and complete it than to do her best work.