By some accounts, about half the music educators in America leave the profession within five years. That means all those ex-music teachers have spent just about as much time training for their profession as they've spent actually practicing it. And for a growing number of their colleagues, this is a situation that must be addressed, as impossible…

This Progressive Policy Institute report argues that charter schools should be expanded rapidly and exponentially. Citing exponential growth organizations, such as Starbucks and Apple, as well as the rapid growth of molds, viruses and cancers, the report advocates for similar growth models for charter schools. However, there is no explanation of…