FILE - In this Oct. 27, 2011 file photo, Chicago Mayor Rahm Emanuel, right, visits with Brandy Toliver, left, and Mariah Neyland, in their first-grade class at the CICS Washington Park School on Chicago's South Side. The Chicago Public Schools extended the school day from 5 hours and 45 minutes to 7 hours in 2012 after a heated offensive by parents. Emanuel, a proponent of longer school days, had originally proposed a 7 1/2-hour school stay, but adjusted his proposal after discussions with parents, some of whom had been critical of the original plan. (AP Photo/Charles Rex Arbogast, File)

Associated Press
FILE - In this Oct. 27, 2011 file photo, Chicago Mayor Rahm Emanuel, right, visits with Brandy Toliver, left, and Mariah Neyland, in their first-grade class at the CICS Washington Park School on Chicago's South Side. The Chicago Public Schools extended the school day from 5 hours and 45 minutes to 7 hours in 2012 after a heated offensive by parents. Emanuel, a proponent of longer school days, had originally proposed a 7 1/2-hour school stay, but adjusted his proposal after discussions with parents, some of whom had been critical of the original plan. (AP Photo/Charles Rex Arbogast, File)
FILE - In this Oct. 27, 2011 file photo, Chicago Mayor Rahm Emanuel, right, visits with Brandy Toliver, left, and Mariah Neyland, in their first-grade class at the CICS Washington Park School on Chicago's South Side. The Chicago Public Schools extended the school day from 5 hours and 45 minutes to 7 hours in 2012 after a heated offensive by parents. Emanuel, a proponent of longer school days, had originally proposed a 7 1/2-hour school stay, but adjusted his proposal after discussions with parents, some of whom had been critical of the original plan. (AP Photo/Charles Rex Arbogast, File)
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