“…To date, research on argumentation has emphasized how argument structure is practiced through writing (McNeill, Lizotte, Krajcik, & Marx, ), reading (von der Mühlen, Richter, Schmid, & Berthold, ), or oral discourse (Christodoulou & Osborne, ); how the practices of argument construction, critique, justification, and evaluation are performed (Berland & Reiser, ; Chen, Park, & Hand, 2016; Ford, ); how informal reasoning on socio‐scientific issues is progressed (Sadler, ; Venville & Dawson, ; Zangori, Peel, Kinslow, Friedrichsen, & Sadler, ; Zeidler, Herman, Ruzek, Linder, & Lin, ); how multiple models of representation are adapted to articulate and debate arguments for knowledge development (Namdar & Shen, ; Waldrip & Prain, ); how teachers’ conceptions (Sampson & Blanchard, ) and knowledge (McNeill & Knight, ; Suh & Park, ) for using argumentation relate to their pedagogical decisions; and how teachers orchestrate diverse ideas, alternative concepts, and counterarguments to stimulate productive thinking (Chen, Hand, & Norton‐Meier, 2017; Chin & Osborne, ). Relatively little research has investigated argumentation as an enterprise of managing uncertainty, the role of uncertainty in argumentation, or how teachers manage uncertainty in ways that contribute to students’ conceptual development.…”