Ideais matemáticas na prática de um serralheiro - contexto para o ensino de matemática.

Abstract

This work has the task of presenting the results of a research that aims to understand mathematical ideas mobilized in the practice of a locksmith who can constitute a context for the teaching of school mathematics. The research subject is a locksmith who has 29 years of profession. The research is of the qualitative type with contribution of the ethnographic research. The observation, the interview and the photographic record were used to collect the data. Data analysis was performed using the triangulation method. The results obtained allow us to state that in the context of the locksmith there is a mobilization of mathematical ideas in the construction of grids and in the instruments of work called jiggles. Such ideals are related to mathematical contents taught in Basic Education, both in Elementary and High School, that can be used by the teacher as context for the teaching of mathematics.