Casos investigativos no ensino de corrosão: estratégia para o desenvolvimento de habilidades argumentativas de alunos de graduação em química / Case studies in the teaching of corrosion: strategies to develop the argumentative abilities of undergraduate chemistry students

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

In recent years a growing number of studies are focusing on the role of argumentation in science learning contexts. Studies have looked at: the place of argumentation in science teaching; the design and evaluation of learning environments that support the teaching and learning of argumentation in a scientific context; the quality of studentsargumentation, and sought to discover factors that promote argumentation. The research reported in this study focused on the potential of the case study method to promote argumentation. The research took place over one semester in an undergraduate chemistry course in Brazil. After receiving each case, students worked in group on a set of questions designed to guide them through key chemical ("corrosion" curriculum unit), environmental and economic aspects of the case study. The process culminated with class presentations by student groups about possible solutions to the cases and a posterior debate between the groups that have solved the same case. To assess the studentsargumentation, each student was videotaped and audio-recorded while they presented possible solutions to the cases; the audio-recordings were fully transcribed. To assess the quality of studentsargumentation, Toulmins Argument Pattern (TAP) and an analytical tool that extend the use of TAP were applied to the presentation transcripts. The findings of this work support the idea that the case study approach is an effective strategy for enhancing studentsability to argument.

ASSUNTO(S)

corrosão corrosion argumentação argumentation case studies estudo de casos

ACESSO AO ARTIGO

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