Recursos tecnológicos como ferramentas didáticas no processo ensino-aprendizagem de função quadrática

Abstract

This paper aims to propose a sequence of activities using the Power Point and GeoGebra program as a tool of teaching development of the concept that involves Polinomial Function of the second degree, considering all the context of activities involving Educative Technology. The program GeoGebra was chosen since it is free and totally translated to Portuguese. Its interface is simple, and there are just few commands, which are mostly self explanatory. The proposal activities were applied on three classes from the first to the third year of the High School, Colégio Estadual Central do Brasil. At the first moment, the activities have happened in the classroom as the traditional method asks to, as using the board and book exercises resolution at school. At the second moment, the activites have happened in the technology lab of the same school, where it was possible with the Power Point and the GeoGebra Dynamic Geometry software help, to detail a problem situation related with the Polinomial Function of the second degree. In both moments, questions were applied in order to evaluate the understanding of concepts related to the theme. These procedures supported the obtained results of the developed activities, at this context, they facilitate the performance and the quadratic function, helping us to conclude that the using of the Power Point, GeoGebra, and also the multimedia resources at the math classes can provoke the students curiosities about the subject and also motivate them to search new knowlodge. In addition the systems facilitate the understanding because of its visual factor, dynamism, which permits the user to build and analyse better many possibilities in a few time.