Sustained professional development can support STEM (Science, Technology, Engineering, and Mathematics) reform. The authors describe a 3-year study of sustained professional development for 3 diverse urban schools across the salient factors of fidelity of implementation of project-based learning, development of professional learning communities,…

As the professional learning community (PLC) as a desired cultural norm gains popularity within K-12 state schools, greater knowledge of the PLC implementation process is warranted. This study reports findings from semi-structured focus group interviews with teachers in an urban/suburban high school after one year of schoolwide professional…

The present study investigated the district-wide characteristics of relational ties among a sample of K-12 teachers implementing the Common Core comprehensive education reform. This study addressed deficits in current scholarly understanding of the social influences in schools that impact delivery of educational reform efforts such as the Common…

In the study reported here, I explored the notion of teacher leadership as described by individuals participating in a district-wide school reform initiative, the Accelerating Student Achievement Project. Through the district-wide project, teacher leaders were identified at each of the middle and high schools to further develop the schools'…

During the last 4 decades, numerous reform efforts have been proposed to improve schools. Two reforms, decentralization and teacher collaboration, seemed to coalesce by the 1990s to pave the way toward a new understanding of leading and learning in schools. In retrospect, the decentralization movement and the literature on teacher collaboration…

This document contains the second volume of the proceedings of the 28th annual conference of the International Group for the Psychology of Mathematics Education. Conference presentations are centered around the theme "Inclusion and Diversity". This volume features 65 research report papers: (1) Constructing Meanings and Utilities within Algebraic…