Teorema de Borsuk no plano

Detalhes bibliográficos
Ano de defesa: 2016
Autor(a) principal: Felício, Milínia Stephanie Nogueira Barbosa
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Não Informado pela instituição
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://www.repositorio.ufc.br/handle/riufc/20959
Resumo: This paper deals with the Borsuk Theorem, focusing on dimension 2. The theorem revolves around the question: "What is the smallest number of parts that a region can be divided into, to ensure that in each part the diameter is less than the diameter of the initial region?" Borsuk proves that the required number of divisions in the plan is less than or equal to 3, to ensure smaller diameter regions. In this paper we present a proof for the theorem above. When creating the minicourse “Borsuk Theorem in the Plane” and applying it to senior students from Jenny Gomes State School, it was proposed to review fundamental concepts of students’ prior knowledge in Plane Geometry, determine core deficiencies in these concepts and make students eager to acquire investigation and commitment around the subject, besides handling a content yet-unseen by them, presenting also the historical scenario of the theorem. Students enrolled willingly in the course. For data collection it was used a socioeconomic questionnaire, motivational basis tests and knowledge tests, before and after the course. The Borsuk theorem in the plan makes use only of elementary geometry and can be understood by high school students. New concepts such as diameter of a flat figure, lines of support and Pall Lemma will be presented. It was found that the activity is an effective tool against the disinterest and difficulty of students regarding Geometry.