As we think of the way young children progress towards mastery, we notice multiple, varying paths that require differing levels of time, repetition, modality, and more. There truly are some students who are "quick studies." They learn in the snap of your fingers, but there are others that take lots of time and repetition to learn a skill or perhaps demonstrate that skill. To rush those students along is only to potentially demean them. We know that positivity, encouragement, and success lead to greater learning, so why build programs that teach to some and not others.
It's imperative that we begin to look carefully at what each and every child needs, and match our program paths to those needs. Too many assessments, drill, and not enough time for meaningful learning will do that to children.
One-size-fits-all curricula generally does not serve children well, yet there's room for some same learning and activity for all children.
I watched Jo Boaler's new TedTalk today. It was so inspiring. As I've noted before her research proves what so many good teachers everywhere believe in.