September 10, 2012
In this Saturday, Sept. 8, 2012 file photo, members of the Chicago Teachers Union distribute strike signage at the Chicago Teachers Union strike headquarters in Chicago. The Chicago Teachers Union announced Sunday night that its 25,000 members will go on strike Monday morning, Sept. 10, 2012, for the first time in 25 years after contract talks with the school district failed over issues that included benefits and job security. (AP Photo/Sitthixay Ditthavong)
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More than 350,000 students remain out of their classrooms as bargaining to end Chicago's teachers strike dragged into Friday ahead of an afternoon union gathering where a vote could stamp approval on any deal.