On Visual and Symbolic Representations

Activities intended to enhance the theoretical framework and the methodology of mathematical education have intensified during the last decade. We have witnessed, for instance, the publication of diverse cognitive and epistemological studies - in both books and journals - converging to constructivist stances. See [6], [9]. However, it is still necessary to try to make clear in our own work, the meaning of the terms we are using. At present, the general discussion involves the mise en scene of Representation Theory in the context of computers.