Resumen

SASSERON, Lucia Helena  y  CARVALHO, Anna Maria Pessoa de. A construção de argumentos em aulas de ciências: o papel dos dados, evidências e variáveis no estabelecimento de justificativas. Ciência educ. [online]. 2014, vol.20, n.02, pp.393-410. ISSN 1516-7313.

Our aim is analyze actions in science classes that contribute to the construction of arguments, especially working with data, variables and evidence to construct explanations. Our main theoretical framework is Toulmin's argument pattern (TAP-1958/2006). Our data are transcriptions of two recorded science classes which occurred in a fourth year of Elementary School. Initial analysis has highlighted arguments constructed collectively in these classes. From this data, we identify how each TAP element was constructed, considering the teacher's actions. It is noteworthy that the construction of the argument occurs in a non-intuitive order: teacher doesn't start expecting a claim construction, but the claim is a result of the analysis of various situations. Evidence is provided through the investigation of empirical data.

Palabras clave : Toulmin's Argument Pattern; Argumentation; Science Education.

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