We contend that the classroom-discourse routine of IRE/F (teacher initiation, student response, teacher evaluation/follow-up) is a genre of argumentation that is both collaborative and implicit because teachers and students cooperate during IRE/F exchanges not only to make and mirror knowledge claims but also to suppress justification for those…

This study investigated different math-talk facilitations, and conceptualized the teachers' talk moves for productive student mathematics discussions. Our findings suggest that students' strategy development is supported by talk moves coordinating a wide range of student strategies, representations and discussions that are at a process-level and…