Tyrese Graham and Tania Kostova

Tyrese Graham is a second year science teacher at John Marshall Metropolitan High School on the West Side of Chicago. When he started teaching, Marshall was among the worst public schools in the city. At StoryCorps, Tyrese talked with his girlfriend, Tania Kostova, about his first day on the job.

Originally aired May 27, 2012 on NPR’s Weekend Edition Sunday.