This paper reports on a study into the untutored ability of Grade 10 students to engage in argumentation about the interpretation of experimental data, and the effect of unsupported small group discussions on this ability. In this study, argumentation intends to promote critical thinking. The sample includes 266 students from five South African…

Modelled Discussions About Science (MoDAS), where adults talk together about scientific ideas, procedures and applications, were devised to model and improve the quality of pupils' discussions. Two examples from one of the project schools are examined to see if these aims were fulfilled and to comment on examples of cognitive and social aspects of…

This paper explores the argumentation ability of ten science teachers in two South African schools on opposite ends of the resource spectrum. Toulmin's model is used to analyse individual contributions in six group discussions. The findings show that levels of argumentation improve with teachers' involvement in the development of teaching…