“…Despite the rising popularity of professional learning communities among researchers, practitioners, and educational policy makers, research on PLCs is still in a developmental stage of theory building (Lomos, 2012;Stoll et al, 2006;Toole & Louis, 2002;Vescio, Ross, & Adams, 2008). Researchers employ a variety of terms to describe how teachers' individual and collective learning is embedded in schools and linked with school-wide capacity for improvement, such as community of practice, organizational (shared, collaborative, collective) learning, professional community, (school) learning community, and school-based teacher learning community (Lee & Smith, 1996;Louis & Marks, 1998;Louis, Marks, & Kruse, 1996;McLaughlin & Talbert, 2001;Mitchell & Sackney, 2000;Newmann, King, & Youngs, 2000).…”