Carmen Vieira Mathias

Formas de Revolução e Cálculo de Volume

Neste trabalho apresentam-se propostas de atividades que podem ser desenvolvidas com alunos do Ensino Medio, para determinar formas de revolucao, bem como o volume das mesmas. O objetivo principal ao desenvolver as atividades foi determinar uma maneira de calcular volume de solidos de revolucao quaisquer, sem utilizar conceitos de Calculo Diferencial e Integral ou utilizando as formas classicas de calculo de volume. Pretende-se, com a abordagem por meio do software GeoGebra, mostrar diferentes maneiras de trabalhar conceitos matematicos, que em geral nao sao desenvolvidos em cursos regulares, contribuindo com a disseminacao do uso de um recurso tecnologico na resolucao de problemas cotidianos ou matematicos.

PEDAGOGICAL MATH MATERIAL IN A CRITICAL EDUCATION APPROACH

Critical research in mathematics education (CME) has pointed out the urgent need to produce educational materials that emphasize real situations experienced by students so that learning becomes more meaningful. To contribute to the research on CME, in this article is presented teaching suggestions to Financial Mathematics (FM) through a pedagogical proposal guided by CME. It is essential that, when applying this proposal, the teacher aims to raise students’ awareness of the importance of the concepts of FM as a tool and to understand the reality in which they operate. The proposed content by pedagogic activities includes the study of concepts of exchange, investments and loans, for students to learn how FM is used socially. Still, this study suggests solving the proposed examples, through spreadsheets, because it offers more features than a calculator.