[msteffen]

Given all the money spent on trying different educational models to achieve better outcomes, it's really gratifying to see a result suggesting that improvement is actually possible. I have a lot of teachers in my family and they tend to take the perspective that education is an engineering problem rather than a research problem. That is, any apparent progress is due to extra funding or filtering students or the like.

> "Those costs do not include anticipated savings from improved teacher morale and retention, a dynamic demonstrated in other data."

That seems like some kind of supportive evidence as well. Teachers should logically be happier when working inside a system optimized for teaching efficacy!

Personally: we put our child in a Montessori preschool because we liked its emphasis on self-directed learning (I kind of think all learning has to be self-directed on some level. Even a lecture requires you to listen to and think about the lecture, instead of something else). We later moved him to a Reggio Emilia program for non-pedagogical reasons (there were problems with the building that the Montessori school was in). They're definitely different—in Montessori, he mostly played on his own, and in Reggio we now see him in pairs and groups all the time. I have no idea which is better, but his teachers at the Reggio school seem to like it.