An analysis of the content of geometric transformations in High School textbooks

This article presents an analysis of the content of geometric transformations in three collections of mathematics textbooks for high school selected by the last Programa Nacional do Livro Didático (PNLD). In this analysis, we sought to identify how the geometric transformations of translation, refle...

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Bibliographic Details
Main Author: Nakamura, Paulo Henrique Souza (author)
Other Authors: Pazuch, Vinícius (author)
Format: article
Language:por
Published: 2020
Subjects:
Online Access:https://doi.org/10.46551/emd.e202055
Country:Brazil
Oai:oai:ojs2.periodicos.unimontes.br:article/2871
Description
Summary:This article presents an analysis of the content of geometric transformations in three collections of mathematics textbooks for high school selected by the last Programa Nacional do Livro Didático (PNLD). In this analysis, we sought to identify how the geometric transformations of translation, reflection, rotation and homotetia are presented, what are the tasks proposed on the content and the assignments for teachers who use these books. The analyzes were constituted from literature review of task, including problem situation, and exercise. It was found that there was a lack of deepening in some units of the analyzed books, the absence of a significant number of problems instead of exercises and the scarcity of suggestions for a more significant teacher’s performance at High School.