A importância da utilização de múltiplas representações no desenvolvimento do conceito de função: uma proposta de ensino

Abstract

This research proposes an evaluation of a didactic sequence introducing the concept of function, in particular the linear functions It is based on the elements proposed by R.Duval and B.J. Caraça. It specifically intends to evaluate the didactic phenomena which happens during the process of problem solving that involves the conversion of the graphic register of a linear functions into the algebraic and vice-versa. This research was developed in an 8th grade class of an elementary public school on the east side of São Paulo. It demonstrates the importance of making use of multiple representations in the process of developing the conceptualization of function, in order to facilitate the coordination of the various pertinent visuals, in the graphic register, and the correspondent category values in the algebraic register