Arne Duncan, U.S. Secretary of Education, will step down in December — after nearly seven years in the job. Astrid Riecken/Landov hide caption

itoggle caption Astrid Riecken/Landov

Education Secretary Arne Duncan said in a letter to his staff that he will step down to spend more time with his family, who live in Chicago. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images

The winning IMPCT team poses with former President Bill Clinton and (at far right) Philip Hult, co-chairman, EF Education First. The team members (from left) are Andres Escobar, Juan Diego Prudot, Taylor Scobbie and An-Nung Chen Jonathan Fickies/AP Images for Hult Prize Foundation hide caption

itoggle caption Jonathan Fickies/AP Images for Hult Prize Foundation

Fernando Aguilar plays with his 8-year-old son Isaac. He worries that Isaac isn't enrolled in the gifted and talented program in Houston. Laura Isensee/Houston Public Media hide caption

itoggle caption Laura Isensee/Houston Public Media