This study is part of a larger ongoing project. In this project, the documents (video recordings and transcripts) which were collected by the recording of history lessons that were taught in different countries, have been analyzed in order to identify ways in which children are involved in historical enquiry rather than didactic teaching, as a…

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.…