Language Learning App Giant Duolingo Thinks It Can Conquer Math, Too
Duolingo, a quick-and-easy learning app that boasts more than 128 million monthly active users worldwide — mostly for its language offerings — has expanded into mathematics with elementary and middle school lessons aligned to the Common Core standards. The Pittsburgh-based company is one of many — including Prodigy, Splash Learn, DragonBox, IXL and Khan Academy…