O ensino de gráficos estatísticos : uma análise da transposição didática interna em turmas do 1º ano do 2º ciclo

Abstract

This study aimed at analyzing the Internal Didactic Transposition from changes in Knowledge, carried out by two teachers in classes in the 1st year of 2nd cycle, regarded the teaching of statistical graphics, with reference to the textbook, having its support on the Theory of Didactic Transposition (TD) Chevallard (1991). The notion of Didactic Transposition is one of the most relevant theories in the field of Mathematics Didactics. TD is a phenomenon that was initially investigated by Yves Chevallard and it proposes the analysis of the path that knowledge follows since the scientific production until its entry into the school context, reaching the classroom. Data for this study were produced from the procedures/instruments: audio recordings and video observations of two classes and one class in each class, study planning built by teachers for the observed lessons, analysis of the textbooks activities used by the groups that have been researched and experienced in class analysis of metatext, oral text, built by teachers and analysis of written records made on the whiteboard. The data have revealed that the teachers know and used the official documents: the National Curriculum Parameters PCN (BRASIL, 1997) and/or the Pedagogical Plan of municipal schools of Recife: Building skills for planning lessons. The textbooks used by the surveyed groups are based on PCN rules to work with the Data Handling. Besides, they´re not against what the Pedagogical Plan stands for at municipal schools in Recife. The found results show that despite the knowledge and use of the texts of official documents by the teachers, such use is not necessarily being done properly. They also suggest that the activities done in the textbooks related to information processing, which are used by the surveyed groups, mainly deal with prorposals of graphs interpretation.