A Modelagem Matemática no desenvolvimento do ensino da função exponencial

Abstract

It is understood that Mathematics Teaching must be worked in the classroom in a contextualized way, valuing the cultural, social and economic aspects of the students. Mathematical Modeling is a methodology that provides a construction of mathematical knowledge related to reality in a meaningful way, both for the student and the teacher. Thus, it was decided to apply it through an experiment in order to work the exponential function in a practical and contextualized way, in order to verify if through a mathematical model it is possible to develop an understandable learning in relation to the study of the exponential function. This work is qualitative in nature, exploratory, descriptive, and uses the observation technique. For the operationalization of the work it was considered the premise of seeking to develop the mathematical thinking of students and for this, we adopted as a strategy the experiment experienced in the discipline of Content and Practice of the Specialization Course in Mathematics in Secondary Education (Mathematics in Practice). The research subjects were students of the first year of high school in a public school in Alegrete/RS. It is worth mentioning that the activities reported in this paper constitute an unprecedented class for the teacher/researcher. Among the strategies used in the class, the students were organized in groups and documents were made available for each group to prepare a report with a record of all the steps of the experiment. The production of data occurred through the analysis of the reports prepared by the students, as well as through the observation and recording of the class by the author. After the analysis it was possible to conclude that the activity provided the development of mathematical skills of the students with emphasis in solving the exponential function, collaborating with the critical sense, making them able to argue based on mathematical facts.