Abstract

TARIRA CAICE, Carlos Armando; PARRA-SANDOVAL, Hugo  and  DELGADO GONZALEZ, Mercedes. Teaching processes of the exponential function. A qualitative approach. RCUISRAEL [online]. 2020, vol.7, n.3, pp.37-50. ISSN 2631-2786.  https://doi.org/10.35290/rcui.v7n3.2020.303.

The study of exponential function as a mathematical object of teaching is of utmost importance for the understanding of human activities related to various fields, such as economics, biology, physics, medicine or demography. Among them we can highlight the study of exponential growth and decrease, a topic that is enriched by its graphic or geometric construction on an orthogonal plane. It also allows managing physical variables such as time relative to others such as population, or radioactivity. This research aims to describe the process of teaching exponential function through a qualitative approach. The methodology used was qualitative. It was framed in a case study. The informant was a teacher of ​​mathematics; a description was made of the teaching process on this topic in an Ecuadorian educational unit. The results show that the teacher uses adequate mathematical terminology, his performance is of a masterly expository type, establishes a very succinct type of interdisciplinary connection and has a structured work plan from which he does not deviate. Among the conclusions, it should be noted that the traditional behaviorist way of carrying out pedagogical praxis can still be appreciated in Ecuador, characterized by mechanical and repetitive work when teaching specific knowledge of the subject.

Keywords : teaching processes; exponential function; mathematics; teaching of exponential function; knowledge quartet.

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