There is growing attention to personalizing education to provide students with more flexibility in their education experiences and more time to master academic content. To personalize education, Legacy High School in Bismarck Public Schools, North Dakota, has implemented a schedule that allows students to choose how they use a portion of the school day outside of their regularly scheduled classes. Students can use this flexible time, called flex-time, visiting one of the school's content-specific learning centers, working alone or with classmates on school projects, or relaxing with friends. Teachers may also determine how students use some of their flex-time, when necessary. Leaders at Legacy High School and Bismarck Public Schools partnered with the Regional Educational Laboratory Central to examine how students used their flex-time and whether students with different demographic characteristics and academic achievement levels used their flex-time differently. [For the full report, see ED606448; for the appendixes, see ED606451; for the study brief, see ED606453.]