Charter schools.

Nationwide, 355 charter schools opened their doors for the first time this fall, with Arizona, California, and Florida having the most new charters, according to survey results from the Washington-based Center for Education Reform. The new schools are educating at least 100,000 students, according to the analysis. The group pegs the total number of autonomous public schools at 4,568, based on its annual survey. Total enrollment in charter schools nationwide is 1.34 million, the group said. (Oct. 23)