A bedtime story is a longtime tradition. What about a math, science or history quiz, though? George Marks/Getty Images hide caption

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Two students walk in front of Stanford Memorial Church on the Stanford University campus in Stanford, Calif. Paul Sakuma/AP hide caption

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Kimberly Payton, a teacher at the Small Savers Child Development Center, reads to a group of preschoolers in Washington, D.C., in 2010. Researchers say that teachers who make small changes in how they read to 4-year-olds can improve kids' reading skills later on. Ricky Carioti/The Washington Post/Getty Images hide caption

itoggle caption Ricky Carioti/The Washington Post/Getty Images

How much are they paying? Chuck Zovko/courtesy Lafayette College hide caption

itoggle caption Chuck Zovko/courtesy Lafayette College

"My mom opened the letter and she called me and told me I got the Marquis Scholarship. And she's like, 'It's a humungous scholarship!'" -Michele Tallarita Jacob Goldstein/NPR hide caption

itoggle caption Jacob Goldstein/NPR

Planet Money

How Colleges Fight For Top Students

Colleges use money to woo top students. It's an effective tactic, but it drives up tuition for everyone else.

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