The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...

Allonda Hawkins said the way her children are expected to do math is “100 percent different” from the way she learned. “There are terms that I’ve never heard before, like arrays. It’s very foreign to ...

There is always more than one way to implement a standard algorithm. The examples used have been designed as revision materials that exemplify some of the ways to implement these algorithms. In each ...