Division Street ran through Atchison, Kan. It divided the community along racial lines until a local advocacy group, Atchison United, lobbied to change it. But some Catholics in the city resisted the effort.
Emily Oster's new book wades through the data on questions relevant to many parents of school-age kids. But the book is less about the data itself and more about how to frame decisions on these topics and others in the most effective, logical and efficient way.
Mr. Pérez is now the executive director of the NativityMiguel Coalition, a national network of faith-based schools that follow the Nativity model for helping children prepare for rigorous high school curricula.