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“Value Added”: Grading Teachers Through Student Growth

The model predicts how much improvement students should make based on past results. If a student ends up performing better than predicted, the teacher gets the credit with a high “value-added’ grade. But if the student scores less than expected, the teacher gets the blame and a low grade.
17, 2013

The state of Ohio is phasing in a new teacher grading system that tries to measure the value a teacher adds to a student’s academic progress. But educators admit “Value Added” is an incomplete metric.