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In the past few years, more states have incorporated student success as part of teacher evaluation systems. However, as TNTP reports on its blog, implementation is not measuring up to policy, and in most cases evaluations don’t offer enough meaningful feedback or put forth specific criteria by which to measure teachers.

Overwhelmingly positive evaluation results teachers continue to receive aren’t helping teachers, either. The primary purpose of evaluation should be to lay out clear performance standards and provide fair, accurate feedback on performance against those standards to help teachers improve. Our best teachers want that feedback. When virtually all teachers are told they don’t need to improve, no one wins.