The aim of this study was to describe and analyze the nature of group work through a series of thirteen video taped classroom lessons for fourth grade students. Using a case approach technique, the emphasis was on methodological problems. The study showed that even the investigation of a single mode of instruction such as group work is a highly…

The authors investigated the microlevel processes of collaborative reasoning in heterogeneous peer dyads working on an open-design task in elementary geometry. Special attention was paid to the nature of student social interaction, problem-solving strategies, and mathematical language and how they shape collaborative problem-solving processes.…