D.C. Public Schools fired a teacher for a "confirmed testing impropriety" during this spring's round of standardized testing, Chancellor Kaya Henderson told The Washington Examiner.
Henderson declined to name the teacher or the school, and said she could not elaborate on the nature of the "impropriety."
D.C. school officials investigated 14 security breaches on the 2011 DC Comprehensive Assessment System, or DC CAS, after throwing out 2010 scores from three classrooms with "evidence or a strong suspicion of a test security violation."
The scores from the fired teacher's classroom were not included in Friday's release of the 2011 scores, Henderson said.
The Office of the State Superintendent for Education is investigating eight classrooms with a suspicious number of incorrect answers erased and corrected during the 2010 testing.