MÉTODO DE COMPARAÇÕES VISUAIS ENTRE MEDIDAS DE SEGMENTOS COMO FACILITADOR DA APRENDIZAGEM DE CONCEITOS TRIGONOMÉTRICOS

Detalhes bibliográficos
Ano de defesa: 2017
Autor(a) principal: Gonçalves, José Sinval Soares
Orientador(a): Pereira, Marciano lattes
Banca de defesa: Guardia, Giuliano Gadioli La lattes, Santos Junior, Guataçara dos lattes
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: UNIVERSIDADE ESTADUAL DE PONTA GROSSA
Programa de Pós-Graduação: Programa de Pós-Graduação em Matemática (Profissional em Rede Nacional)
Departamento: Matemática
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
PI
Área do conhecimento CNPq:
Link de acesso: http://tede2.uepg.br/jspui/handle/prefix/1515
Resumo: It is well the great difficulty presented by the students with respect to the trigonometry. Base on this fact, we understand that any tool that can help in the teaching of this content will always be welcome. The aim of this work is to present a pedagogical proposal that consists of applying a apparently simple method to call a Method of Visual Comparisons. This method consists of obtaining values generated by ratios between measurements of similar figures or even the value of the PI number without having the necessity of measuring and divide using standardized measurement units. Look at the lengths of the segments that represent the sides of triangles, a rectified circumference and your diameter, among others and compare. This comparison starts to check if the measure of a length is greater than, less than or equal to the measure of another length and a more refined, comparison with the fractionation of one of the segments. The main idea is to try to estimate a value, if the measures are equal, if the smaller measure is worth half or perhaps seventy-five percent (three quarters) of the larger, or if the larger is worth two, three, or who knows once and half the smaller measure, only with the look, without dividing numerical values. We believe it's worth measuring, comparing,drawing in scale and measure the scale designed to estimate, because these activities and procedures help in a better understanding of the results that will be demonstrated later