Etnomatemática da feira livre: contribuições para uma proposta didáticopedagógica de ensino-aprendizagem em matemática na educação básica

Abstract

This paper aims to analyze evidences of mathematical knowledge implicit in commercial operations of three market stallholders, located in Nova Natal Housing Complex, at Natal/RN. To achieve this goal, it was searched for theoretical support in the views of D'Ambrosio (2002) on Ethnomathematics, in the official documents’ proposal, as well as in qualitative research. In the empirical part, it was used Ethnography procedures, such as diary, semi-structured interviews and participant observation. Based on the collected data’s analysis, it was elaborated an Activity Book as a proposal to support the process of teaching and learning in mathematics, guided by assumptions of teaching-learning-assessment methodology through the Solving Problem, based on the concepts of Onuchic & Allevato (2009) who assisted in the establishment of the Educational Product to the level of Basic Education. The problem-situations, inserted in the Product Educational, emerged from the interpretations of mathematical knowledge, has as a starting point from the purchases made by market stallholders for suppliers until the sales of these suppliers by the stallholders to the clients on the open market. In this sociocultural context, it can be noted the presence of mathematical ideas, since the stallholders make use of a specific type of mathematics to solve their inherent problems, on purchasing and sales: passing the change, choose the best tool to quantify the earnings, without using calibrated instruments as analog or digital scale. The Educational Product consists of an alternative proposal for the mathematical process of teaching and learning, intending to promote the application of abilities geared to estimated calculation, appropriation of mathematical concepts applied in different situations, as well as in other knowledge areas, besides it is, in fact, a proposal for the teachers to implement educational and pedagogical actions in the classroom.