Raciocínio combinatório na resolução de problemas nos anos iniciais do ensino fundamental: um estudo com professores

• Ano de defesa: 2014
• Autor(a) principal: Oliveira, Eliana Gomes de
• Orientador(a): Coutinho, Cileda de Queiroz e Silva
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Pontifícia Universidade Católica de São Paulo
• Programa de Pós-Graduação: Programa de Estudos Pós-Graduados em Educação Matemática
• Departamento: Educação
• País: BR
• Palavras-chave em Português: Combinatória; Estudo de caso; Teoria dos campos conceituais; Teoria antropológica do didático; Letramento combinatório
• Palavras-chave em Inglês: Combinatory; Case study; Theory of conceptual fields; Anthropological theory of didactic; Combinatory literacy
• Área do conhecimento CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA::MATEMATICA
• Link de acesso: https://tede2.pucsp.br/handle/handle/11012

Research on the teaching and learning of mathematics has shown that in what concerns problems involving the combinatory thought teachers and students commit mistakes that could have been already overcome. For this reason, this dissertation aimed at identifying the operatory invariants teachers working with students of the beginning years of schooling steadily mobilize during the analysis of situations whose content is the Combinatory. The investigation is part of a broader project developed by the research team - PEA-MAT, in the PEPG, Mathematics Education of PUC-SP, in partnership with the group DIMAT, of PUC-Peru. To develop this research the qualitative methodology and the case study were selected. Data were obtained through a questionnaire and a semi-structured interview whose objective was to find the answers for the orienting question of this study, which is: What operatory invariants teachers steadly mobilize when teaching in the beginning years of schooling and during the analysis of situations involving Combinatory? The Theory of Conceptual Fields supported the analysis of the operatory invariants. The Anthropological theory of the Didactic provided subsidies for the analysis of the didactic manuals used by the subjects of this research. Research also investigated the interviewed teachers´ knowledge on Combinatory and Combinatory Literacy. The study revealed that those teachers did not know much about what the official curriculum determined for the Combinatory knowledge. In what concerns the use of didactic manuals teachers were unanimous in agreeing that those books were an essential tool for preparing their classes, even if some of them looked for didactic materials other than books. As to the operatory invariants mobilized by those teachers, analyses demonstrated that they have few concepts on Combinatory because they mobilized the operatory invariant of enumeration of possibilities much more than the means to generalize the multiplication principle. Investigation found out that for situations involving more than two phases and having a greater number of possibilities, invariants were not valid. From those inferences there emerged the urge for a course including the discussion of both didactic and mathematical knowledge (Combinatory), procedures which will surely result in deep reflection on teaching practices