To Improve Student Retention, Some Colleges Consider 'Ungrading'

Some colleges are trying something surprising to make sure their freshman students make it back to campus for sophomore year: ditching letter grades.While the end of the academic year is here, for many first-year students, it might be the end of their college career. About 1 in 4 won't return for their sophomore year. As colleges grapple with how to prevent students from dropping out, an old idea is getting a second look - doing away with letter grades, at least for that crucial first year. Ki Sung from member station KQED reports.