Charter public schools began as the "research and development" alternative to traditional public schools over 20 years ago, but today they account for significant portions of student enrollment in many cities. In more than 190 districts across the country, charter school attendance makes up at least 10 percent of public school student…

In at least ten cities across the country, there are schools that operate under some sort of partnership school model: a "third way" governance strategy that breaks through district-charter divides that could help improve struggling schools or increase the number of quality school options in a neighborhood. Like charter schools,…