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Matemática aplicada ao estudo da área ocupada pelo crescimento de micro-organismos como ferramenta para o ensino da função exponencial

2019; Sociedade Brasileira de Matemática; Volume: 7; Issue: 02 Linguagem: Inglês

10.21711/2319023x2019/pmo712

2319-023X

Elizangela K. S. Goldoni,

Science and Education Research

The study of functions in High School, practiced from the perspective of only theoretical mathematics, can constitute an obstacle of difficult transposition with respect to the understanding of its concepts and applications.In the process of teaching and learning the fundamentals of the exponential function, object of study of this article, it has been verified, through student evaluations and reports, that the treatment purely theoretical of the algebraic expression associated with this function can limit the development of its learning.This article, from a classroom experience with students of the 1st grade of High School, suggests a research activity developed in laboratory, seeking to understand and mathematically model the growth of microorganisms collected from students' saliva and deposited on petri dishes that were observed during ten days with the purpose of measuring the growth of the colony.After this period, the data analyzed were analyzed and with the support of the Excel and GeoGebra programs, made the mathematical modeling that