Unidade de ensino potencialmente significativa : a resolução de situações-problema envolvendo as operações com números reais e a calculadora

Abstract

This work presents a research on problem-solving involving the real numbers, with the calculator's support from a differentiated proposal, developed in the form of a Potentially Meaningful Teaching Unit (UEPS) (MOREIRA, 2011). The research is based on the Theory of Meaningful Learning, of Ausubel (2003). In this context, we sought to investigate the influence of the calculator when used aiming at meaningful learning and aiming at the elaboration, application and analysis of the results obtained with the application of the related UEPS in mathematics discipline. The analyzed data have origin in several instruments applied during its accomplishment, through situation-problems involving the operations with real numbers, in a class composed by twenty-four students of the ninth year, of a state school of Caxias do Sul, during the months of June and July 2016. The analysis of the data used as instruments all the resolutions and participation of the students, as well as the diagnostic evaluation and the final evaluation, presenting significant results regarding the meaningful learning of the addressed content. As a product of this study, it was organized a UEPS, in the form of a Didactic Guide, for use by interested teachers.