Las problemáticas semióticas en las representaciones de los conjuntos infinitos en la práctica docente

Abstract

The present doctoral research on semiotic problems in the representations of infinite sets in teaching practice, arises from the teaching and learning processes of infinite sets of numbers, where difficulties are evident in students regarding its cognitive construction. These are associated with the objective difficulty of the students in the face of the infinity theme, the general theme of the formation of a noetic versus the semiotic representations (Duval's paradox) and the development of a “semiotic consciousness” by the teachers; with "semiotic consciousness" we mean the conscious knowledge about the systems of representations, which are mobilized in mathematical activity and which is specific to semiotics. This research is especially focus on the characterization of the teachers' “semiotic awareness” manifestations of the representations of the infinite sets, based on their reflection on the productions and comments of their students.