The aims of this paper are twofold. First, we present, justify, and characterise an instrument for analysing students' argumentative reasoning developed from Walton's ideas. Then, from the analysis of students' argumentative discussion about a socio-scientific controversy, we identify the advantages and disadvantages of using the instrument. The…

Being challenged by opposing views in a controversial discussion can stimulate the production of more elaborate and sophisticated argumentations. According to the model of argument reappraisal (Leitão, 2000), such processes require transactivity, meaning that students do not only give reasons to support their own position (e.g., pro/contra…

Treating creationism as a controversial topic within the science and religion issue in the science classroom has been widely discussed in the recent literature. Some researchers have proposed that this topic is best addressed by focusing on sociocognitive conflict. To prepare new learning opportunities for this approach, it is necessary to know…

We tried to determine the reasoning behind the stances taken by a group of 19-21-year-old students on the controversial issue of the feasibility and acceptability of human gene therapy. The students were in training at a biotechnology institute. We organised classroom debates, punctuated by phases of epistemological "disturbances". We…

Since its acceptance as a pedagogic field, environmental education has experienced divergence and antagonism in its theoretical and methodological approaches and standpoints. In this paper, the author talks about the conflicting relationship between environmental education and education for sustainable development as well as the many discourses…

This paper reports a qualitative study on students' informal reasoning on a controversial socio-scientific issue. Twenty-two students from four science classes in Norway were interviewed about the local construction of new power lines and the possible increased risk of childhood leukaemia. The focus in the study is on what arguments the students…