“…In this study we use the terms practice and communities of practice to describe the collaboration between teachers and researchers. Compared with other concepts employed to describe regularities of, in particular, teachers' work, such as culture (Childs et al, 2013;Hargreaves, 1994), sub-culture (Baggott la Velle et al, 2004Velle et al, , 2007Goodson and Mangan, 1995), tradition (Lundqvist et al, 2012;Pomson, 2002;Östman, 1995), and discourse (Buxton et al, 2013), the term practice seems to be the most general. This can be seen, for instance, in that practice is often used 'non-operationally' also in studies that have defined some other term in more detail (see for example Baggot la Velle et al, 2007 andGoodson andMangan, 1995).…”