This case study deals with a solitary learner's process of mathematical justification during her investigation of bifurcation points in dynamic systems. Her motivation to justify the bifurcation points drove the learning process. Methodologically, our analysis used the nested epistemic actions model for abstraction in context. In previous work, we…

Investigates processes involved in visual estimation and processes of judgment in visual estimation situations involving proportional reasoning. Exposure to a unit in the Agam project, designed to enhance visual estimation capabilities, resulted in changes in the nine-year-old subjects' strategies, reflecting processes by which children overcome…

Describes a preservice program to prepare teachers for a curriculum based on the realistic approach. The program appeared successful in changing student teachers' views of mathematics education towards this more inquiry-oriented approach and in promoting effective teacher behavior in classrooms. Only a small number of teachers recognized the…

A socio-constructivist account of learning and emotions stresses the situatedness of every learning activity and points to the close interactions between cognitive, conative and affective factors in students' learning and problem solving. Emotions are perceived as being constituted by the dynamic interplay of cognitive, physiological, and…

Presents a framework used in shaping two major mathematics teacher education research and development projects, built on a framework for mathematics learning derived from a social constructivist view of learning and incorporating aspects of French didactical theory. Describes interconnections between different domains of teacher knowledge.…