A for-profit approach to Head Start

At St. Elizabeth's Head Start in North Philadelphia, Aaron Lieberman, founder and chief executive officer of Acelero Learning Inc., spends some time with the children in Ashley Post's classroom. (Photo by CLEM MURRAY / Philadelphia Inquirer Staff Photographer)
On a recent spring morning at the St. Elizabeth’s Head Start center in North Philadelphia, Ashley Post, a first-year teacher freshly graduated from the University of Pennsylvania, clicked on her “listening ears” and patted down her “thinking cap” as a room full of 15 preschoolers imitated her every move.
Many of the children were here last year, but most of the adults in the room – including Post, the center director, the curriculum manager, and a Teach For America mentor taking notes on Post’s lesson – are brand new, along