The use of GeoGebra to develop knowledge about some circumference properties

Abstract

This article is a fragment of a larger research and aimed to use the technology to verify the appropriation of circumference properties, such as tangents and circumference ropes, which are fundamental to develop mathematical knowledge and logical reasoning in Geometry in Elementary School, through an activity carried out at city of Júlio de Castilhos, RS. It was chose to use GeoGebra to develop the research, which was characterized as a case study of qualitative nature. We present one of the activities proposed and solved, which is described and analyzed according to the theoretical assumptions used. It was considered the importance of this software as a tool for the teaching of Geometry, in the basic school, aiding in the passage from the concrete mental schemes to the abstracts. It was concluded that the students understood and appropriated concepts such as concentric circles, relating, in the course of the resolution, their own knowledge. Besides that, this computational technology influenced the teaching and learning process of a topic of Euclidean Geometry, enabling the teacher to innovate in the search for meaningful learning.