Ben had taken the PSAT back in the fall of his junior year. He did very well on the verbal side—720 out of 800, putting him in the top few percent nationally—but his math score was less impressive: a 580, which put him only in the top third of all students. Not exactly Yale material. Like millions of other students who had taken the PSAT that year, Ben got an email from the College Board inviting him to study for the SAT using Official SAT Practice on Khan Academy.

