Um estudo de caso sobre aspectos do conhecimento profissional de professoras que ensinam Geometria em turmas de quarta série

Abstract

This research is concerning professional knowledge from teachers who teach Geometry to the fourth grade. Specifically, the study identifies and analyzes aspects (conceptions, curriculum elements and concepts) that appeared in teachers Geometry practice. The investigation was implemented with two teachers from Elementary School at municipal schools in São João Evangelista, Minas Gerais. We used the following strategies to collect the data: application of questionnaires; observation; interview; documentary analysis; notes on the researcher diary. The research highlights the importance of observation and material manipulation for the teaching at primary level. It was identified that the teacher s professional knowledge about Geometry comes from pedagogic practices, daily. Despite a little experience at this subject of mathematic the teacher s used the textbook as a principal source and ventured to employ innovatory practices in Geometry.