This article reports key findings from a 2-1/2-year mixed methodological study of professional learning communities, the first of its kind in England. In particular, the concept of effectiveness is explored as it relates to professional learning communities. We describe three ways in which effectiveness can be construed, arguing that any…

After an overview of the characteristics of professional learning communities (PLCs), this manuscript presents a review of 10 American studies and one English study on the impact of PLCs on teaching practices and student learning. Although, few studies move beyond self-reports of positive impact, a small number of empirical studies explore the…