Developing knowledge and practice for high-quality K-12 class discussion remains challenging, especially for new teachers juggling other classroom responsibilities. Our study reports the case of a preservice teacher learning to lead discussions while enrolled in a teacher education inquiry course, simultaneous with semester-long supervised…

Triadic dialogue, the Initiation, Response, Evaluation sequence typical of teacher /student interactions in classrooms, has long been identified as a barrier to students' access to learning, including science learning. A large body of research on the subject has over the years led to projects and policies aimed at increasing opportunities for…

In this report, we argue that some of the most productive and edifying kinds of literature discussions among certain ages/grade levels may be best understood as "mangles of practice" (Pickering, 1995). Mangles of practice involve the coalescence of planned and contingent forces, and they produce emergent or self-organizing…