Worried about charter schools taking over CPS? Relax. The National Association of Public Charter Schools' latest report (Top 10 Charter Communities by Market Share) includes nary a mention of Chicago. To get on the list, Chicago would have to have 13 percent of its students in charter schools (or way more than 43,000 kids). I don't think we're anywhere near that, thanks to the charter cap and the small size of most charter schools.