My big question is did they start her at the beginning of their standard progression, or did they assess what she already knew and start her there?
The Montessori preschool we went to had the same sorts of learning opportunities available that you describe. In that regard, it was a great place.
Our problem with the program was that DS couldn't use the 100s beads (let alone the 1000s beads!) until he had been "checked off" as having mastered the 10s beads. That meant that DS, who doesn't jump through the simple hoops like some kids will, was stuck at a very (VERY!) basic level in language arts because the teachers never realized they were boring the poor kid senseless. He was reading books, but he wouldn't ID letter sounds for them because it was too easy for him. So he was stuck for over half the year on letter sounds.
Opportunities don't matter if the kids aren't allowed access to them! Unfortunately, this is a common problem at many highly academic preschools, and Montessori is often (not always) among these.
I am glad that you're not having this problem. It sounds like you've found a good pre-K program for your DD.
