In 2011, the high school dropout rate for MAS students in Tucson was 2.5 percent, as opposed to 56 percent for Latino students nationally. The documentary Precious Knowledge tells the story of the high school seniors who became activists to save Tucson’s ethnic studies classes. What were your Mexican American Studies classes like on the first day of school? At my former school right now, in my district, it’s about 65 percent Latino. The after-school Mexican American studies classes Acosta started at the John Valenzuela Youth Center in Fall 2012 are now available for college credit through Prescott College.