This publication summarizes the key discussion from experts in the field of measuring student growth during a convening held February 2015. Experts heard about two emerging approaches to measuring growth: Portfolios of student work samples and unit value-added models that provide teachers with timely and actionable feedback that they can use to improve their practices. Scott Marion, from the Center for Assessment, shared with experts a comprehensive framework for incorporating measures of student growth into educator evaluations. The framework outlines the decision points and trade-offs States and districts should consider when designing or selecting a growth measure that can be used to evaluate teachers. The framework can also be used by States and districts to improve student growth measures already in use.