Teachers’ noticing to promote students’ mathematical dialogue in group work

How can teachers refne their strategies for purposefully engaging students in mathematicaldiscussions when students are working in groups and the teacher enters an ongoing groupconversation? In three educational design research cycles, four teachers collaborated witha researcher for one year to analyse, design and evaluate strategies for engaging students insmall-group mathematical discussions. The idea of noticing (Mason in Researching yourown practice: the discipline of noticing, RoutledgeFalmer, London, 2002; Sherin et al. inMathematics teacher noticing: seeing through teachers’ eyes, Taylor & Francis, New York,2011) was used to organize the fndings—by paying attention to aspects in the mathematical discussions and interpreting the interactions, teachers could together refne their ownactions/responses to better support students’ work. The Inquiry Co-operation Model ofAlrø and Skovsmose (Dialogue and learning in mathematics education: intention, refection, critique, Kluwer Academic Publishers, Dordrecht, 2004) was used as a theoreticalbase for understanding qualities in mathematical discussions. Ehrenfeld and Horn’s (EducStud Math 103(7):251–272, 2020) model of initiation-entry-focus-exit and participationwas for interpreting and organizing the fndings on teachers’ actions. The results show thatteachers became more aware of the importance of explicit instructions and their own role asfacilitators of mathematical questions to students, by directing specifc mathematical questions to all students within the groups. In this article, by going back and forth between whathappened in the teachers’ professional development group and in the classrooms, it waspossible to simultaneously follow the teachers’ development processes and what changedin students’ mathematical discussions