Sixty D.C. Public Schools classrooms are being investigated for possible cheating on 2011 standardized tests — up from just 18 classrooms in 2010 — as city officials are now allowing D.C. Public Schools as well as the state schools agency to flag suspected teachers.

The Office of the State Superintendent of Education identified 24 classrooms with unusual numbers of incorrect answers erased and changed to the correct ones, or with unusually high test score gains on the D.C. Comprehensive Assessment System tests. DCPS flagged 36 classrooms using different formulas. The 60 DCPS classrooms to be investigated are spread across 30 schools, and represent 5 percent of all classrooms the DC CAS was administered to in 2011.

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