https://www.fcd-us.org/an-ocean-of-unknowns-risks-and-opportunities-in-using-student-achievement-data-to-evaluate-prek-3rd-grade-teachers/
As of 2012, 20 states and DC require evidence of student learning to play a role in evaluating teacher performance. As a result, states and school districts are struggling to find sound methods to measure young students’ achievement and rushing to implement evaluation systems without thinking through the risks, according to a new policy paper from the Early Education initiative at the New America Foundation, An Ocean of Unknowns: Risks and Opportunities in Using Student Achievement Data to Evaluate PreK-3rd Grade Teachers, provides a snapshot of how student achievement data are being used in teacher evaluation systems today and illuminates the issues causing states and school districts the most struggles.