Tânia Maria Mendonça Campos

A geometria no ensino fundamental: reflexões sobre uma experiência de formação envolvendo professores e alunos

Discute os principais resultados de um projeto de pesquisa que teve como objetivo investigar problemas relativos ao ensino e a aprendizagem da Geometria, enfrentados por professores da rede publica estadual de ensino, bem como por seus alunos de 5a a 8a series. Analisa essencialmente procedimentos metodologicos, fundamentos teoricos e principais resultados, focalizando a origem dos problemas relacionados com o ensino e a aprendizagem da Geometria, as estrategias montadas para enfrentar uma parte desses problemas e as mudancas de concepcoes e praticas de professores.

Mediation of Technological Resources in Lessons on Polyhedra: Analysis of Two Teaching Actions

This chapter aims at discussing the mediation of technological resources done in geometry classes, in particular, for the teaching of polyhedral-prisms and pyramids – in primary school. The focus is to understand teaching actions and the use of technological resources by observing two teachers on geometry classes and analyzing results from this “in loco” survey. Zeichner’s ideas about teacher’s reflective practice and the view of Serrazina about the teacher as a manager of curriculum defined the theoretical framework. The methodology was qualitative, grounded in the complexity theory. We observed two different teachers’ actions and the mediation of available resources in order to help students’ participation and the development of the classes.