Members of the Chicago Teachers Union's House of Delegates celebrate after the delegates voted to suspend the strike against the school district Tuesday, Sept. 18, 2012, in Chicago. The city's ... more 
Members of the Chicago Teachers Union's House of Delegates celebrate 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) less 
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Associated Press | Photo By Charles Rex Arbogast
Tue, Sep 18, 2012 9:22 PM EDT