For tens of millions of users, language learning apps like Duolingo have provided an opportunity to freshen up on French or try their hand at Mandarin. The now 13-year-old language platform, which ...

The new question-of-the-week is: What has been the best math lesson you have taught and why do you think it was so good? In Part One, Beth Kobett, Jill Henry, Avery Zachery, Cindy Garcia, Molly ...

Cédric Villani is one of France's top mathematicians, working across several fields of the discipline. He's won a number of titles and awards for his work. A professor at Claude Bernard Lyon 1 ...