“…Studies have demonstrated that video use supports teacher noticing of salient aspects of practice, including student thinking and interactions between teachers and students (Borko, Jacobs, Eiteljorg, & Pittman, 2008; Mitchell & Ariemma-Marin, 2015; Sherin & van Es, 2005; Tripp & Rich, 2012; van Es & Sherin, 2010). Similarly, analysis of video appears to support teachers’ learning about new instructional strategies (Sun & van Es, 2015), and teachers have reported applying in their lessons what they have learned through video analysis (Christ, Arya, & Chiu, 2014). As two examples, van Es and Sherin (2010) found that teachers who shared clips from their own lessons increasingly probed students’ thinking and made students’ ideas public, and Roth and colleagues (2011) found that teachers who analyzed their own lessons significantly increased their use of student thinking strategies.…”