Founders: Jennifer Schnidman Medbery, 27
Company: Drop the Chalk
Year founded: 2009
Location: New Orleans
2010 Revenue: Undisclosed
2011 Projected Revenue: Undisclosed
Jennifer Schnidman Medbery knew that teaching math at a New Orleans charter school would be tough, even though the school, Sci Academy, had attracted a "dream team" staff. What surprised her was that the most challenging aspect of the job wasn't connecting with the kids, so much as it was keeping track of their progress and behavior on a day-to-day basis.