Uma introdução ao conceito de função

Abstract

The concept of function is one of the most important of mathematics. It's understanding is essential not only to know other contents of mathematics itself, but also for the description and studying everyday and other areas of knowledge situations. Therefore, in this completion of course work it is proposed activities related to functions, prioritizing the teaching of its concept. The proposal presented here works this concept in a practical and concrete way, with the manipulation of objects and the student himself serving as data source. To this end, a sequence of activities was elaborated, worked in three periods of fifty minutes, in which the students read, write, draw, cut, discuss and built the required function in each situation studied. The activities were developed in a first year high school class of the state education network and in this work is presented its planning, its implementation as well as the conclusions obtained. These evidences that the proposed activities allowed the students to understand the concept of function and to identify its different forms of representation.