Aprendizagem do conceito fração: um experimento de ensino baseado na teoria do ensino desenvolvimental

Abstract

This research, inscribed in the line of research Theories of Education and Pedagogical Processes, starts from an understanding based on the Historical- Cultural theory, according to which the school is the privileged place in the formation of scientific concepts by the students, being the form of learning that best contributes to its development as an integral human being. It seeks to clarify how to organize the Mathematich teaching, based on the the developmental teaching theory, to help the Pedagogy course students to form a fraction concept theoretical thinking. For this, the concepts construction, particularly the mathematical concept of fraction, was approached with theoretical and practical interest in the future teachers formation who will teach mathematics in the Elementary School initial years. The research objectives were: to understand the developmental theory contributions to the formation of the fraction concept, by the licentiate course in Pedagogy students of a public institution of higher education in the Goiás State; To understand in the course of the teaching-learning process of the fraction concept of elements that indicate qualitative and quantitative changes in the development of student thinking; To point out the developmental theory peculiarities of teaching the fraction concept considering the context of the Pedagogy course students formation. To investigate the problem, a teaching experiment was carried out, based on Davydov's assumptions, in a group of 36 undergraduate students in a Pedagogy course. Data collection involved questionnaires application, interviews and audio and video recordings. For the data categorization and systematization, the following moments were delineated (1) Approach with the fraction concept in the search for the universal relation of the studied object (2) Modeling the universal relation (3) Internalization of the fraction concept universal relation (4) Abstraction in the fraction concept formation and the particular tasks construction (5) Control of the mental actions realization in the formation of the fraction concept (6) Evaluation of the assimilation in the fraction concept formation through of problem solving. The data analysis revealed that this research main contribution was to show an alternative way of organizing the Mathematics teaching, specifically the fraction concept, since the experiment showed that, on average, 70.53% (seventy point fifty-three percent) of the students pointed out qualitative changes in the mathematical way of thinking and the fraction concept.