Why Do Americans Stink at Math?
I teach math.  I am impressed that when you read these comments, very few of them show evidence of having read the article.<p>The article is about experience with actual students, with ones who have a real knack for the subject and would learn it despite what any teacher did, and with ones who waver.  There proves to be a better way, which the article describes in various ways, including as &quot;sense-making.&quot;<p>One of the problems here is that everybody has a pre-formed opinion and does not seem to want to risk having to modify it with the evidence of experience.