Proposta Metodológica para a Resolução de Problemas de Proporcionalidade Directa/Inversa que envolvem a Regra de três Compostas na 9ª Classe

Abstract

The present research work has as its theme: Methodological proposal for solving direct/inverse proportionality problems involving the rule of three compounds in grade 9. The work aims to improve the teaching-learning process of Mathematics. Taking into account the numerous weaknesses found in students when solving problems involving direct/inverse proportionality, the following research problem was identified: How to improve the treatment of problems involving direct/inverse proportionality with more than two quantities? In order to solve this research problem, the following objective was outlined: To develop a methodological proposal for solving direct/inverse proportionality problems involving the rule of three compounds in Grade 9. The type of investigation of this research is descriptive and the results obtained from the survey applied to students and teachers, showed the need to develop a Methodological Proposal for solving problems of direct/inverse proportionality with more than two magnitudes. Thus, the work is structured as follows: Chapter I – Theoretical foundations and Chapter II – Data analysis and processing and, presentation of the methodological proposal for solving direct/inverse proportionality problems involving the rule of three compounds.