Roger Alvarez (left) did not graduate from high school, despite the efforts of his former English teacher, Antero Garcia. At 22, Alvarez still hopes to get his GED. StoryCorps hide caption

itoggle caption StoryCorps

President Obama delivers the commencement address for Kalamazoo Central High School's class of 2007 in Kalamazoo, Mich. The state requires students to stay in school until they turn 18. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP

Stanford Engineering's Online Introduction To Artificial Intelligence is made up of videos that teach lessons by drawing them out with pen and paper. knowitvideos/vie YouTube hide caption

itoggle caption knowitvideos/vie YouTube

Many law school students say they were lured in by juicy job numbers upon graduation, but when they got out, all they ended up with is massive debt. Dan Kite/ hide caption

itoggle caption Dan Kite/