This report finds that the overwhelming majority of teachers and principals in Chicago Public Schools (CPS) believe the overhaul of the district's teacher evaluation system has promoted teacher growth and instructional improvement; however, teachers also voiced concerns about some elements of the evaluation system, particularly the use of student test scores as a factor in teacher ratings. "Challenges clearly remain for CPS, which must improve communication and training around teacher evaluation and also grapple with teacher's concerns around the fairness of their ratings," said Sue Sporte,...