“…From a language-pedagogical perspective, some studies have examined beliefs about subject-specific themes like grammar (Giovanelli, 2015;Watson, 2015), vocabulary (Hestetraeet, 2010;Macalister, 2012) and communicative proficiency (Lampert & Graziani, 2009). The majority of studies into teacher cognition, however, have been more generic, investigating the impact of professional communities on teacher learning (Avalos, 2011;Vescio, Ross, & Adams, 2008) and reporting considerable benefits when school leaders are involved in teachers' continuing professional development (Desimone, 2009;Maugesten & Mellegård, 2015;Opfer & Pedder, 2011).…”