Add Yahoo as a preferred source to see more of our stories on Google. Duolingo, a quick-and-easy learning app that boasts more than 128 million monthly active users worldwide — mostly for its language ...

Mike Kenny didn’t intend to create an educational web app — he was just looking for a way to help students master their multiplication tables. In 2013, as a graduate student in the Vermont Mathematics ...

Middle school math class probably isn’t on most people’s lists of favorite school memories. But that could be changing in one central Alabama school district thanks to the efforts of a corps of math ...