Kevin Wang always had the teaching bug in him.
After graduating from UC-Berkeley in 2002 with a degree in electrical engineering and computer science, he turned down industry jobs to teach in the Bay Area. A few years later he got a masters degree in education from Harvard and then went to Microsoft to work as a software developer.
But he couldn't stop teaching.
Before he arrived at the office every morning, Wang drove to a nearby high school and taught first-period computer science. He told colleagues and friends about his experience and recruited them to teach in local schools.