Can you set up another conference, and be prepared to speak about your DD and ask questions? Maybe take your DH with you? I take the parent part of the parent/teacher conference seriously. I do listen to the teacher's comments, but definitely ask questions if something seems unusual or odd, or even just to clarify. Also, I usually have a couple of questions prepared to ask the teachers.
In your case, either your DD is hiding her knowledge at preschool, or the teacher isn't really paying attention. You might want to ask her how they do the evaluations.
Edited to add - Truthfully, the only thing I expected one of my DS's to learn in preschool was social skills. The other DS needed to practice writing letters, but other than that, my expectation was lots of playtime with friends. I didn't expect them to focus on academics.
However, I would have been concerned had the teachers not noticed that my sons knew their letters and numbers, as well as the other "academic" skills required for K. One of them could read well at that age, and his teacher picked up on it because he was looking at the words when she read a book to the class and he looked at her oddly when she skipped words, LOL.
Last edited by momoftwins; 11/08/13 09:56 AM.