A Matemática Informal: sua Aplicação no Canteiro de Obras por meio do Conhecimento Empírico

Abstract

In the present work, the informal mathematics was analyzed in the construction site by using as a methodologically research an empirical component. Beyond, as a main goal of this article, taking into account this proceeding was to approach to the mathematics studied in the classroom. Hence, at one hand, it is possible identifier in what way the mathematics is inserted in the construction. On the other hand, gathering the mason skills with a classroom's mathematics. In practice, an interview was  performed with a restricted group of mason. The theoretical referential used for analysing the data was the ethnomathematics approach. As a result, the classroom's mathematics is relantioned strongly with the mathematics used by masons, for example, budget, performing calculation to achieve a structure square, water and mass proportions for obtaining an adequate concrete relantioned to its applications, inclination roof, floor leveling and many other goals. As a general procedure, the performing calculation taken into account an one degree polynomial, known as three rule. The only exceptions for this apporach is relationed with the area and volume calculations. In this way, one becomes an important crucil attitude to connect the activities presented in the construction site to that taughted by mathematics' teachers in the schools.