This article presents the foundation of research around which other contributions in this issue are structured. It follows from a larger study aimed at supporting the professional development of beginning teachers with respect to their personal epistemology. The study explores the link between beliefs and practices in continuing education.It is an avenue that is still little used in research, particularly in Quebec, where research has focused more often on pre-service teachers. Previous studies identified highlight inconsistencies between expressed beliefs (epistemological and (...) pedagogical) and actual teaching practices. These concepts that are central to our approach. They will be clarified and illustrated in this article with the help of portraits of two high school natural science (NS) teachers offering a particular look at the tensions present in the belief-practice articulations. These two portraits are elaborated mostly from qualitative data drawn from explanatory interviews, from which similarities and dissimilarities emerge with regard to the question studied. The article conclude with suggestions for accompanying beginning teachers in resolving these tensions. (shrink)

This article proposes a theoretical reflection on the articulation between teachers’ conceptions of particular knowledge objects on the one hand, and their professional action about these objects on the other. We will illustrate our point through two studies carried out in France and in Quebec in the field of the teaching of socially acute questions (SAQs). The first study focuses on the link between the social representations (Abric, 1994) of sustainable development (SD) among future teachers of humanities and natural sciences (...) and their practices with regard to education for sustainable development (ESD).The second study focuses on the relationship between a science teacher’s knowledge about the natural sciences (NS) as an object of knowledge and as an object of instruction. In order to enrich our reflection, we present an original operationalization of the concept of teaching practices, whose different dimensions (finalized, technical, interactive, affective) are put in relation with the concepts of social representations and relationships to knowledges. This perspective and theoretical reflection allows us to identify crossings and tensions between beliefs and teaching practices with regard to the SAQs in reference to the transformative-sociocritical and transmissive-positivist approaches of ESD. (shrink)