PHOTOS: Chicago public school teachers on strike

Stephanie Hayes, a member of the Chicago Teachers Union's House of Delegates celebrates after the delegates voted to suspend the strike against the school district Tuesday, Sept. 18, 2012, in Chicago. The city's teachers agreed to return to the classroom after more than a week on the picket lines, ending a spiteful stalemate with Mayor Rahm Emanuel that put teacher evaluations and job security at the center of a national debate about the future of public education. (AP Photo/Charles Rex Arbogast) <span class=meta>(AP Photo/ Charles Rex Arbogast)</span>
September 18, 2012 5:03:42 PM PDT