Chicago teachers strike
Chicago Teachers Union members and supporters, including some students, rally in Congress Plaza on Michigan Avenue in downtown Chicago, Illinois, Thursday, September 13, 2012. (E. Jason Wambsgans/Chicago Tribune/MCT)
Chicago Teachers Union members and supporters, including some students, rally in Congress Plaza on Michigan Avenue in downtown Chicago, Illinois, Thursday, September 13, 2012. (E. Jason Wambsgans/Chicago Tribune/MCT)