Teachers in 18 Washington, D.C., classrooms cheated last year on high-stakes standardized tests, according to a report by the Office of the State Superintendent of Education. The Washington Post reports that the cheating occurred at 11 schools: seven traditional and four charter. The test-tampering included providing students with answers, reading test questions aloud and encouraging students to reread specific questions. District officials maintain that no widespread cheating has occurred. But City Council member Kenyan R. McDuffie says the violations may be a sign of a wider problem.