A utilização do software Geogebra no processo de ensino-aprendizagem da Geometria plana

Abstract

This dissertation aims to verify the difficulties presented by the students of elementary school in the understanding of Euclidean geometric definitions and in their constructions, with the purpose of presenting an innovative proposal for the teaching of flat geometry, in a way that only a computerized environment can provide the dynamic geometry known as moving designs. Geogebra has been used to create geometric figures and the movement of these figures by changing their shape and dimensions dynamically without loss of their properties. Regarding the methods used, the research was carried out in the state of Alagoas in a public and private school, applied at the fundamental level, to work the definitions and properties of the remarkable triangles and quadrilaterals with a group of students of the 8th grade built in Geogebra software, which allows searching solutions by means of attempts and observations, as well as to analyze the relations between the properties of triangles and quadrilaterals. The research followed, based on Van Hiele's theory. The results indicated that some students were able to reach the 3rd level and others remained in the 1st level, according to theory, the analysis was done by collecting data on the questions of the applied activities. At the conclusion of the research, it was verified through the analyzes of the activities and testimonies of the students, if the classes of flat geometry in the elementary school have become more interesting and pleasant with the application of this software, being thus another tool for better understanding and fixation in relation The properties and definitions of triangles and quadrilaterals.