Saberes matemáticos de criadores de camarão em Marcação-PB: uma investigação a partir da etnomatemática

Abstract

The present Course Completion Work (TCC) had as general objective to investigate the mathematical knowledge used by shrimp breeders in the municipality of Marcação – PB, seeking to relate them to concepts of school mathematics. For this, the following specific objectives were elaborated: to describe the practices and techniques used by shrimp farmers in the municipality of Marcação – PB, identifying the mathematical knowledge present in them; and to relate the mathematical knowledge identified in the practices of shrimp farmers with the contents of school mathematics. Therefore, the research, due to its purpose, was characterized by a qualitative approach; Regarding the objectives, it is exploratory in nature, as for the investigation procedures, the research in question is classified as a case study. The research instruments used were observation and semi-structured interviews. The subjects of the research were three workers from the city of Marcação – PB. The theoretical foundation of the research was based on studies of books, theses, articles and TCC, which addressed Ethnomathematics and Shrimp Farming, based on authors such as D'Ambrosio (2008), Bandeira (2016), Knijnik et al. (2006), Melo (2023) and Silvia (2005). Based on the information obtained, it was possible to identify the mathematical knowledge used by shrimp farmers, from Ethnomathematics, and associate them with formal mathematical concepts. Some mathematical ideas were observed involving operations of addition, subtraction, multiplication and division, the proportionality between quantities, and the measures of mass, time, among others, used and developed by the group, which facilitate their daily activities. Such as the use of the "handful" as a reference in the separation of the feed; the calculation of the shrimp weight, from the separation into pairs; weighing on the sticks; the use of the agenda as a way of controlling investments, among other aspects derived from their own wisdom.