Área de figuras planas: Decisões didáticas de um professor nas aulas de Matemática

Abstract

This research was developed in the field of Didactics of Mathematics of French origin, aiming to analyze the didactic decisions of a Mathematics professor in the context of teaching the content area of flat figures, considering the teaching activity before the teaching of the aforementioned knowledge. To justify it, we use as a theoretical framework the Model of Decisional Factors proposed by Bessot (2019), which is based on the Theory of Didactic Situations (BROUSSEAU, 1998) and in the Anthropological Theory of Didactics (CHEVALLARD, 1991), because, by means of it, it is possible to understand the factors that influence teachers' resolutions, since they are led to make choices and decisions throughout their activity. On the subjects, the research was carried out with a Mathematics teacher from the 7th year of Elementary School, from a public school in the municipal system of Lagoa de Dentro - PB and, we used for the production of data, semi-structured interviews and the logbook filled in by the teacher when he planned his classes.The theoretical framework used and the data produced during the investigation indicate that didactic decisions were strongly influenced by external and epistemic factors, due to the conditions imposed by the school on how classes would be accomplished during remote teaching and, furthermore, didactic history ones we also noticed, since they were related to the sources highlighted in the logbook.