In continuation of the program’s focus on education issues, guest host Jennifer Ludden checks in with Kavitha Cardoza, a reporter for NPR member station WAMU-FM in Washington, D.C., about enrollment problems at the National Preparatory Public Charter School, which is opening next month. More than a third of students in the nation’s capitol are enrolled in charter schools — the largest percentage in the country. But National Prep is having trouble meeting its enrollment figures.