Saberes e fazeres do pedreiro numa perspectiva etnomatemática.

Abstract

The construction of acquisitions comprises a mathematical knowledge necessary for the survival of the human species. It is in this context that the professional bricklayer emerges, who builds a set of knowledge and cultural practices necessary for the construction of good houses, which have adequate infrastructure to house their residents, without infiltrations or landslides. This ethnomathematical knowledge involves mathematical relations in language games produced and mobilized mainly through experience, acquired through daily work and through the transmission of knowledge from bricklayer-teachers to bricklayer-beginners. Thus, this Course Completion Work (TCC) intends to obtain answers to the following question: how are the knowledge and practices of bricklayers presented in Brazilian research in Ethnomathematics and their similarities? Presenting a research supported by the Ethnomathematics Program of Ubiratan D'Ambrosio, whose theme consists of the bricklayer's ethnomathematics and whose objective is to understand which types of knowledge and actions of the bricklayers are evidenced/perceived by Brazilian works in Ethnomathematics that occur in diverse cultural and geographic contexts , in terms of their similarities. To this end, a qualitative approach is assumed and the concept of knowledge from experience and the Wittgensteinian concepts of family resemblances and language games are mobilized, as they are treated in the field of Ethnomathematics by Gelsa Knijnik and other researchers. Thus, in the following bibliographical research, a documentary analysis of a total of 10 works is undertaken, including articles and dissertations, whose considerations are made on four practices highlighted by the researched authors: the preparation of the dough; the construction of the jig; the calculation of the amount of bricks; and the calculation of the slope of the roof. Practices that involve mathematical knowledge such as the concepts of area, circumference, ratio and proportion, percentage, unofficial measurement units (use of cans, shovels and carts for measuring materials), some of these concepts/facts remaining present in used bricklayers such as square, stakes and lines. Through this analysis, it is understood, through a more careful research, that the knowledge and practices initially judged as common to the socio-cultural group of bricklayers, regardless of their geographical context, retain differences that mark particularities.