Across the country, educators continue to wrestle with big questions about math curricula. Two years ago, the California education board’s adoption of a long-gestating new math framework added more ...

Guides are all over the web. Google any word + “guide,” and you’ll probably find someone has written about that topic, no matter how obscure. But there’s a good reason for this: Well-written guides ...

Picture the following: A student volunteers to answer a math question in an elementary school classroom. The teacher knows from working with the student previously that although she can easily follow ...