Here are 7 key things to know about charter school quantity and quality. Love them or hate them, charter schools are here to stay. But public and policy debates about them continue to be plagued by outdated information, myths and misunderstandings. To correct some of these misunderstandings, in a new Bellwether Education Partners report, Ashley LiBetti Mitchel, Andrew Rotherham and I collected and synthesized data from numerous sources to offer a comprehensive picture of the current state of the charter sector, its growth, performance and the opportunities ahead.