Função quadrática: uma análise de sua abordagem em livros didáticos

Abstract

The study of quadratic function is considered fundamental to the domain of mathematical knowledge, due to the connections established between this and other studies of mathematics itself. The objective of this text is to analyze the approach of the Quadratic Function content in the textbook of the 9th grade of Elementary School II and the 1st grade of High School, used in the Public School Network of Água Branca - Piauí, in 2019. In order to achieve the desired objective, the study took into account the evaluation criteria of a textbook and particularly the content of the agenda, based on the guide of the National Plan of the PNLD Textbook. One of the results found, because it shows similar approaches and, at the same time, continuity to each other regarding the Quadratic Function content. Regarding the question of exercises proposed in each book, it is noted that in both there is a predominance of exercises of memorization and repetition, but it is noteworthy that in both there are also related to the daily lives of students, sports and other areas of knowledge