Most adults recall memorizing the names of rivers or the Pythagorean theorem in school and wondering, “When am I ever gonna use this stuff?” Kids today have a high-profile spokesman. Jonathan Rochelle, the director of Google’s education apps group, said last year at an industry conference that he “cannot answer” why his children should learn the quadratic equation. He wonders why they cannot “ask Google.” If Mr. Rochelle cannot answer his children, I can.

Read full article: The New York Times, “You Still Need Your Brain.”