Resumo

VILLA-OCHOA, Jhony Alexander. Covariational reasoning in the quadratic function learning. Rev. Fac. Cienc. Tecnol. [online]. 2012, n.31, pp.9-25. ISSN 0121-3814.

This article discusses the results of a case study that describes a student´s covariatonal reasoning to deal with situations of variation associated with quadratic functions. The study was designed to develop a convergent line of inquiry (Yin, 2009) and was focused on the descriptions and actions performed by the student when facing one of the situations of variation. This experience helped the researchers describe the student´s reasoning and discover some implications for both the conceptual framework addressed in this study and the design of the classroom-oriented situations.

Palavras-chave : Quadratic function; process of reasoning; covariational reasoning; reason for change.

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