For the past 12 years, the author has worked with peer coaches in more than 40 countries, and has seen schools where peer coaches have collaborated with colleagues to improve teaching and learning in classrooms across the school. In other schools, coaches have played a critical role in creating a culture of collaboration that helps build the…

This article describes a novel effort in New York City, the Learning Partners Program, which matches veteran principals with two or more newer ones. In 2014-15, the first full year of the effort, the city's Department of Education put 73 of the city's more than 1,800 schools into 23 groups of threes and one group of four. Every group comprised one…

Eight school districts in Rhode Island formed the East Bay Professional Learning Community to launch a joint effort to develop a culture of assessment literacy through ongoing professional learning focused on team-specific action plans tightly aligned to school, district, and state initiatives. To accomplish this, the districts pooled their…