Come to think of it, I remember taking a "number sense" class in middle school that taught me a lot of really neat ways to work with and think about numbers, which I imagine is somewhat related to common core math.
In some ways the change was a long time coming, really. We already had elements of it being taught in specialized classes. They just weren't core curriculum yet.
In some ways the change was a long time coming, really. We already had elements of it being taught in specialized classes. They just weren't core curriculum yet.