Modelagem matemática sob a ótica da teoria dos registros de representação semiótica e da educação dialógica

Abstract

This research was conducted in order to answer the following question: Which are the implications of teaching, from the perspective of Mathematical Modeling, for learning in the cognitive and social dimensions, on perspective of the Theory of Semiotic Representation Registers and Paulo Freire's contributions to the dialogical education? Therefore, the objective of this study is highlight the implications of teaching, from the perspective of Mathematical Modeling, through a cognitive analysis based on Duval's Theory of Semiotic Representation Registers (2004, 2009, 2010, 2012a, 2012b). , 2012c) and through a social analysis, based on the contributions of Freire (1979, 1983, 2001, 2017a, 2017b) for dialogic education. Aiming at reaching the goal set, the methodology of the work was based on the theoretical support of the study of ethnographic case study, according to the understanding of André (2008) and Marconi and Lakatos (2002). In this sense, the instruments of data collection used were the productions of the students during the accomplishment of the proposed activities, the reports constructed from the participant systematic observation and questionnaires. The research was carried out in a municipal school of Elementary School, in the city of Araucária - PR. The research subjects comprise the research teacher and her thirty-two (32) students from a ninth grade class. The methodological procedures were conducted by Mathematical Modeling, from the perspective of Mathematical Education and according to the conception of Burak (1992, 1194, 2004, 2006, 2010a, 2010b). To do so, the work was developed based on the themes chosen by the students, by relevance criteria, which involved the problems caused by dengue and the economic crisis, as well as the reuse of garbage. The problem raised was whether the reuse of garbage, for making handicrafts, could help combat dengue and reduce the problems caused by the economic crisis. Its solution showed that leaving to play a volume equivalent to 387.73 liters of garbage, could be raised R$ 2,805.00, in the sale of the pieces made with this material reused. The main implication of teaching in the perspective of Mathematical Modeling, for learning in the cognitive dimension, which reflects secondary implications, was evidenced through the Theory of Semiotic Representation Registers in the measure that the students' difficulties arose about the mathematical objects necessary to solve the problem raised. The constant interaction between teacher and students seeking to overcome the doubts presented, a fundamental characteristic of dialogic education, gave rise to manifestations and records that, analyzed on the basis of Duval's theory, revealed fragilities due to the lack of elementary knowledge of mathematics. can come from the predominance of a traditional education. The secondary implications are characterized by the difficulty of students in the construction of mathematical concepts, evidenced by the lack of habit of working in this perspective and by the resistance to the proposed methodology. In both cases, one can see the internalization of a banking education, considered by the majority of the students as the only possible methodology to promote learning. The implications of teaching in the perspective of Mathematical Modeling, for learning in the social dimension, were revealed on perspective of the theoretical presuppositions of dialogical education defended by Freire, as the students manifested changes in attitudes regarding the care and reuse of garbage, a instead, the dialogue, the motivation and the interaction, enabled the development of its autonomy, creativity and criticality.