“…TIMSS video study) teachers gain opportunities to learn about effective practices (Hatch & Grossman, 2009) and new instructional strategies (Sherin & Han, 2004). The effects of watching classroom videos are also demonstrated in relation to teachers' motivation, activation of prior knowledge (Lemke, 2007;Nind, Kilburn & Wiles, 2015) and noticing areas of their own teaching about which they were previously unaware (Tripp & Rich, 2012;Zhang, Lundeberg, Koehler & Eberhard, 2011). In particular, it has been shown that when teachers observe their own video-recorded teaching, they tend to activate contextualized knowledge 167 TEACHERS' PERCEPTIONS OF TEACHING AND LEARNING IN THE CLASSROOM SETTINGS about their classroom and their teaching (Borko et al, 2008;Seidel, Stürmer, Blomberg, Kobarg, & Schwindt, 2011).…”