Desenvolvimento de atividades para a construção de alguns conceitos básicos de geometria plana usando o software Geogebra

Abstract

This project is about an educational activities proposal concerning concepts related to: the opposite vertex angles; angles formed between two parallel lines cut by a transversal line; sum of the internal and external angles of a triangle; congruency and sameness of the triangle, among others, using the software Geogebra. The main aim is to present the activities, which will guide the student to develop meaningful basic concepts of plane geometry having an enjoyable method. The activities are presented aimed at constructing the geometrical concepts highlighted on the topic, which gradually have progress by means of complexity and might be applied in basic education and qualification courses for mathematics teachers. These activities will enable the learners to have better observation and acquire representation of concepts by building, visualizing and comparing the elements of plane geometric figures.