Problem solving in groups can be rich with tension for students. This tension may arise from conflicting approaches (conceptual and/or epistemological) and/or from conflict emerging in the social relations among group members. Drawing on video records of undergraduate students working collaboratively, we use three cases to illustrate the…

In this study, we test an information-processing model (IPM) of problem solving in science education, namely the working memory overload model, by applying catastrophe theory. Changes in students' achievement were modeled as discontinuities within a cusp catastrophe model, where working memory capacity was implemented as asymmetry and the degree…

Investigated use of concept and Vee-mapping strategies with regular seventh- and eighth-grade science students (N=155), focusing on changes in student acquisition of science knowledge and problem-solving performance. Includes methods of teaching Vee mapping, evaluating the maps, anectdotal records of Piagetian clinical interviews, findings, and…