This article discusses factors to consider as we evaluate the professional learning occurring in our schools. The article describes how a committee of six teachers and one administrator at Hershey Middle School in Pennsylvania's Derry Township School District adapted an activity for use in a two-hour professional learning session called "The…

Professional development designed to integrate key features of research-based professional learning has positive and significant effects on teacher practice and student achievement in mathematics when implemented in schools that meet specified technology-readiness criteria. Key features of research-based professional learning include intensive…