Includes updates and/or revisions. The influence of a federal report calling for a more orderly approach to teaching mathematics in the early grades will hinge largely on whether its message is ...

I admittedly have very few skills when it comes to math. My second grader can run through long, complicated equations in his head, and I can barely wrap my mind around the new way they are teaching ...

It’s surprisingly difficult to prove one of the most basic properties of a number: whether it can be written as a fraction. A broad new method can help settle this ancient question. In June 1978, the ...