What you mention about working at their own pace is what actually gives me concern. I mean, she is only two, but at the same time, I could see how they would be working with her individually, and not use her abilities comparably. In our montessori school/daycare, the ages are not mingled. She is in the 2s classroom and another child has to age out of the 3s room before she can move in, and they do it by age order, not by ability. which frustrates me. They say they curriculum is the "same", but I think her being exposed to kids that are her peers would be beneficial for her. Like her teacher says, she is very smart. but she also, I doubt, is being given much room to grow.