Resumo

OLIVEIRA, Raquel Gomes de. A teaching case about the decimal numbering system as a means of identification and knowledge elaboration of mathematics future teachers. Rev. Exitus [online]. 2017, vol.7, n.2, pp.74-99.  Epub 16-Maio-2019. ISSN 2237-9460.  https://doi.org/10.24065/2237-9460.2017v7n2id301.

This article is about a qualitative interpretive research that analyzed the use of a teaching case as a means of identification and elaboration of teaching knowledge of undergraduated students of Mathematics from a public university in the interior of São Paulo. The teaching case was about the Decimal Numbering System (SND) and gave the licenciandos the experience of the process of diagnosis, understanding of difficulties and evaluation in didactic-pedagogical situations. The analysis of the results showed that the clarity of the Mathematics undergraduate students regarding the characteristics of the SND, in terms of grouping and positionality, is relevant for the elaboration of teacher knowledge regarding the understanding of the nature and origin of the mistakes made by students in the teaching case. This clarity also allowed the elaboration of questions and actions related to pedagogical practice. The results indicate that teacher knowledge can be developed based on the quality of the relation between the knowledge of the Mathematics future teacher and the knowledge presented by the students in the process of teaching and learning. It was concluded that the didactic-pedagogical simulations experienced in a teaching case can be understood as a means of developing teacher knowledge in the initial teacher training.

Palavras-chave : Teaching Case; Decimal Numbering System; Knowledge and Teacher Training.

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