Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2015-10-28T13:45:05Z No. of bitstreams: 2 Dissertação - Ricardo Gomes Assunção - 2015.pdf: 6739728 bytes, checksum: acac71431ba03e643835eeb3648e99ae (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-10-28T14:42:46Z (GMT) No. of bitstreams: 2 Dissertação - Ricardo Gomes Assunção - 2015.pdf: 6739728 bytes, checksum: acac71431ba03e643835eeb3648e99ae (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2015-10-28T14:42:46Z (GMT). No. of bitstreams: 2 Dissertação - Ricardo Gomes Assunção - 2015.pdf: 6739728 bytes, checksum: acac71431ba03e643835eeb3648e99ae (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2015-05-27 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / 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. / Este trabalho visa estudar as isometrias e homotetias, conhecidas transforma¸c˜oes geom´etricas do plano, por meio da congruˆencia e semelhan¸ca de figuras geom´etricas planas. Afim de explorar e facilitar o entendimento dos conceitos dessas duas transforma¸c˜oes geom´etricas, algumas atividades com figuras geom´etricas congruentes e semelhantes s˜ao propostas num material did´atico manipul´avel criado para esse fim, denominado plano isom´etrico, e, tamb´em, no software GeoGebra. Essas atividades foram aplicadas para uma turma de primeiro ano de ensino m´edio do Instituto Federal Goiano - Campus Uruta´ı, e, alguns coment´arios (resultados observados) acerca dessa aplica¸c˜ao, s˜ao apresentados.