Passage of the Every Student Succeeds Act (ESSA) in December 2015 signaled a new era for teacher evaluation reform. Under ESSA, states and districts have greater autonomy to design and implement teacher evaluation systems independent of federal influence. This new flexibility brings with it new responsibilities and challenges for states and…

Responding to federal policy and recent research, states and districts have developed and begun implementing multiple-measure teacher evaluation systems. These systems generally include observational and/or student survey measures of instructional quality alongside measures of teachers' contributions to student learning (e.g., value-added models…

Until recently, states focused on ensuring the presence of a "highly qualified teacher" in every classroom. Under the 2001 reauthorization of the Elementary and Secondary Education Act (ESEA), known as No Child Left Behind (NCLB), this title described a teacher holding at least a bachelor's degree and the appropriate state license and…