“…"Communities of practice rely on situated theories of knowledge, i.e., the idea that knowledge is a property enacted by groups of people over time in shared practices, rather than the idea that knowledge is a cognitive residue in the head of an individual learner" (Hoadley, 2012, p. 229). However, schoolteachers rarely have the opportunity to participate in discussions and to collaborate about their practice (Barab, Makinster, Moore, & Cunningham, 2001;Darling-Hammond, 1997). Both novice teachers (Herrington, Herrington, Kervin, & Ferry, 2006) and experienced teachers (Tschannen-Moran & Hoy, 2007) report experiencing isolation and a lack of support in schools.…”