you what a valuable intelligent assistant it has become. And 450,000 have linked their College Board results on the PSATs with Khan Academy to get tailored tutoring on the questions they missed, which they can then practice on their own time wherever they are—including through their cell phones. This is one of the quietest but most important intelligent-assistant education tools being made available for free in America today. Practice for the SAT—and advice for getting into college—have long, rightly, been thought of as areas where privilege rather than merit matters, where the wealthy have
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