Um estudo das transformações geométricas no plano via congruência e semelhança de figuras planas

Abstract

The aim of this paper is to study the isometries and homotheties, known geometric transformations of the plane, by means of the congruence and similarity of plane geometric figures. In order to explore and facilitate the understanding of the concepts of these two geometric transformations, some activities with congruent and similar geometric figures are proposed in a manageable teaching materials which were created for this purpose, called isometric plane, and also in GeoGebra software. These activities were applied to a first-year high school class of the Instituto Federal Goiano - Campus Uruta´ı, and some comments (observed results) about this application, they are presented.