“…Currently, transcripts and video from preservice teachers’ own classrooms provide data for them to use in analyzing their classroom discourse and in investigating the effectiveness of experiments to improve their discourse. Observational tools also provide structure and focus as their supervisors assess teacher learning evident in instructional samples (Caughlan, Juzwik, Borsheim-Black, Kelly, & Fine, 2013; Kersting, Givvin, Thompson, Santagata, & Stigler, 2012; Kucan, 2007; Kucan, Palincsar, Khasnabis, & Chang, 2009; Rosemary, Freppon, & Kinnucan-Welsch, 2002; Roskos, Boehlen, & Walker, 2000). Teachers who participate in structured analysis of their own and others’ practice experience growth in pedagogical reasoning; in particular, their analyses become more evidence-based and focused on student thinking and learning (Armstrong & Curran, 2006; Sherin & Han, 2004).…”