Now in its third year, the National STEM Video Game Challenge is a competition among middle school and high school kids who design their own video games.

FORBES: Sesame Workshop Wants Your Kid to Design Video Games

Today, YES serves students from the third grade through graduate school, though Eisner focuses on the pivotal upper-middle-school years: The kids are old enough for him to reliably evaluate their work ethic and their hunger for knowledge, but young enough that their minds are still growing rapidly.

WSJ: The Unlikely Reformer | Innovator of the Year 2012 Education

Now he is in his second year teaching third-graders at Deerwood Academy in Atlanta, and he coaches football at Coan Middle School with two other corps members.

CNN: Unlikely teachers find purpose in the classroom