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…

Teacher education and professional development prepare teachers with up-to-date knowledge, skills, and dispositions necessary for effective teaching. To sustain this, however, hinges on continued professional learning within schools. Research shows that establishing long-term conditions that allow teachers to learn continuously from one another…