A análise textual aplicada a um livro do PNLD e a um material de um sistema de ensino no estudo de funções no ensino médio

Abstract

The objective of this work consist in show an appliance of Textual Analysis proposed by Dormolen (1986) specifically about the notion of function, expanding itself at the study of the polynomial function of degree one, in two materials and compare them: one book approved by the Programa Nacional do Livro Didático (PNLD), in 2018, and a material elaborated by a group of particular schools in Rio de Janeiro. Therefore, through the Chapter 1, first we ll show an historic resume related to the concept of function s evolution, followed by the discussion around of multiple subdivisions that this concept provides, permitting, after that, a pointing of what hope to find in a material, besides the explanation about what becomes a mathematical text. The Chapter 2 will exhibit all methodology of our research, focusing the qualitative researches and, sequentially, we ll talk about Content Analysis showed by Bardin (1977), primordial to guide our view over materials, defining too the codification we used. We ll introduce all over the Chapter 3 the theoretical basis of this research, including the concepts of kernel, language, cursory and conceptual preparation and sign. At the last but one chapter will have an introduction to the two books that will be analyzed and the restrictions to the chapters from each work, followed immediately by their individual analysis. In Chapter 5 we ll put our consideration about all collected data from those two materials.