Little Rock Central High School

Courage in the Classroom tour bus arrives at Central High School

High school junior Tailore Dawson (front row, fourth from left) and friends at Central High School in Little Rock, Ark.

Central High School is America's only active school that's also a national park.

Secretary Duncan, Arkansas Gov. Mike Beebe, U.S. Sen. Mark Pryor and state Commissioner of Education Tom Kimbrell

Teachers at Central High shared their ideas with Secretary Duncan.