What makes a tree a tree? Or rather, why can we recognize trees in even quite abstract depictions when they are so varied in nature? Researchers have found a clue in the branches, and used math to ...

Common Core math is getting the works from critics: It's too demanding for most kids; holds back the speedy kids; not the same as what parents already know; makes kids cry. It even promotes "fuzzy ...

A set of guidelines adopted by 45 states this year may turn children into "little mathematicians" who don't know how to do actual math. A few weeks ago, I wrote an article for TheAtlantic.com ...

Common Core math has sparked a great deal of contention across the country in the past few years. It has its supporters, those who say that it teaches students to better understand mathematical ...

An Iowa woman jokingly calls it "Satan's handiwork." A California mom says she's broken down in tears. A Pennsylvania parent says it "makes my blood boil." What could be so horrible? Grade-school math ...

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