As unidades de grandezas e medidas presentes na comercialização dos produtos da feira livre do Mercado Municipal de Aguaína -To

Abstract

This work aims to provide reflections and debates on the Ethnomathematics present in the open fairs, regarding this knowledge acquired and used by the fairs in their practices of commercialization of their products. In this perspective, the question was asked: In what ethnomathematical terms do the units of magnitudes and measures assumed by the market stallholders of the Araguaína - TO municipal market enhance the knowledge of school mathematics? In which the study proposes with the objective of investigating the systems of units of magnitudes and measures assumed by the marketers, starting from the description of the practices developed by the marketers, identifying throughout the research the units of magnitudes and official and unofficial measures used, in order to to establish a relationship with Mathematics taught in the Basic Education school. From the perspective of the theoretical and practical dialogue that is proposed, it was based, among other milestones, on Ethnomathematics, as a field of research. A qualitative approach was adopted because it did not measure formal mathematics knowledge, but rather the mathematical knowledge undertaken by the vendors during the sale of their products to customers. To this end, the study carried out with the fairgrounds was carried out through ethnographic research to obtain narratives about their community and professional experiences, as well as their mathematical knowledge enhanced during the fair. The present research points out that the marketers use in their commercial practices several types of measures such as the glass, the spoon, the liter, the plate, in the kilogram, measures typical of the marketers' ethnicity.