This study investigated argumentation patterns resulting in teacher-guided and peer-guided group discussions on four socioscientific-issues (SSI). Two groups, each including five students from grade 7, studied on a different SSI during four weeks. Discussions within both groups were observed, videotaped, and analyzed qualitatively. After four…

We compared classroom interactions during two episodes in a seventh grade virtual mathematics class. Both episodes were drawn from virtual live lessons utilizing different lesson layouts. We investigated how mathematical knowledge was negotiated in both episodes. The results show that the layout of live lessons had an effect on how students shared…

This paper presents a rationale and a conceptual framework for a wider research project dealing with mathematical communication, and in particular with actions performed by interlocutors whenever they wish to clarify their use of a symbol, a word or an expression. The aim of such actions is often to repair a communicational breach resulting from…

The purpose of this paper is to discuss the activities of collective learning structures. Drawing from ecological-complexity theory it elaborates on a theoretical framework for observing and acting upon collective learning. To interpret the relation between individual action, social interaction and the collective cognitive domain we adopt the…