Just a few years ago, tenure appeared low on the reform list for state policy makers and district administrators, viewed as too hot an issue politically to challenge. But it was front and center in the 2014 landmark "Vergara v. California" lawsuit, which challenged teacher tenure and related policies. Yet whether to grant tenure or not…

To date, most of the public narrative and pushback on new teacher evaluation systems has centered around their use for high-stakes personnel decisions such as pay, promotion, and dismissal, but these systems were always intended to promote and support improvements for all teachers--not just the superstars or laggards. Why is teacher development…