A derivada como taxa de variação em um curso de engenharia elétrica: imagem conceitual e definição conceitual

Abstract

This study aims to investigate aspects related to image and conceptual conceptual definition for the concept of derivative, when interpreted as a rate of change for students of Electrical Engineering of an educational institution in the state of Minas Gerais. The conceptual definition are words used to explain a concept, and it can often be learned by rote by the student. Conceptual image consists of all the cognitive structure of the mind of the individual who is associated with a given concept. The people surveyed were students who obtained grade of 85 points or more in Calculus I. The method used was aquestionnaire applied to pupils. The results show that, in general, know how to apply the rules, yet deficient when exercises involve the application of the concept of derivative.

Index Terms - Concept image, definition of concepts, rate of change, derivative.