“Learning science is not just learning facts, or even procedures. Science is a discourse-a way of conversing-with an epistemological frame:how to we know? Why do we think so?And I tell that that, yes, you can do this by yourself-have a conversation-but you have to learn to do it first. And its' much easier to learn to do it with a peer rather than an instructor. With an instructor you expect them to "know" the answer and, even if they won't give it to you directly, you expect them to be right. In a science dialog none of you "know" what's right. You're all trying to figure it out.”