Background: Groupwork is a desirable activity in mathematics classrooms for the opportunity it creates for collaborative reasoning and interdependence. Correlations between group-level processes and outcomes have helped characterize the features of more successful groups, but group-level constructs can obscure how students negotiate ideas. This…

This article investigates how affluent students made sense of social justice issues that were embedded in mathematics learning activities. I present 2 case studies of such activities at the intermediate and secondary levels in 2 different schools. The analysis draws on video records and classroom artifacts and applies the theoretical framework of…