Over the last several years, Tennessee has rapidly expanded the use of student growth portfolio models for the purpose of teacher evaluation. Participation, both in the number of districts and teachers, has increased steadily since portfolios were first introduced during the 2011-12 school year, and we expect that participation will continue to…

Analyzing student work can help teachers improve the teaching and learning of mathematics. Fortunately, the four authors have experienced professional development that supports teachers' professional growth and provides tools to begin the challenge of analyzing student work. However, as they began to assume leadership roles in their schools and…