Over the past year, since I took over the common-core math beat, I’ve been thinking a lot about fractions. As I wrote in November, the Common Core State Standards for mathematics emphasize fractions ...

Fractions are enough to make you cry if you’re not a math whiz, but Microsoft Excel handles them very well. In fourth-grade math, you learned fraction basics: Fractions are a numerical representation ...

Important update, Jan. 17 at 18:00 UTC: There have been a lot of objections raised about the video mentioned below and the way I describe the math therein. It’s more than I can simply add or update ...

Want to help your fifth-grader master math? Here are some of the skills your fifth-grader will be learning in the classroom. Explain or illustrate how you solved this problem. Tip: Highlight ...