Proporcionalidade e regra de três através de uma abordagem significativa

Abstract

This research investigates the concepts and applicability of proportionality and rule of three, quantifying the issues in the Enem in the years of 2013 to 2017 that in their resolutions have the idea of these contents, as well as the use of interactive classes with visual audio and the use of applets made in the software Geogebra, verifying their contributions in the interpretation and resolution of problems with this subject in a class of 3rd year of high school in the State School José Mota Manacapuru Amazonas. Before formalize the work we seek to revisit some official documents that govern the basic education, PCNEM (National Curricular Parameters of High School) and Curricular Orientations for High School, so that we would have a north to follow. Continuing the research we approach the core contents and their applicabilities of the disciplines of Physics and Chemistry choosing some laws to comment. In the next chapter we try to find in the tests of the Enem (National Examination of Secondary Education) questions in which are used the ideas of proportionality and rule of three in their respective solutions. In the subsequent chapter we developed one of the general objectives of the research, namely to investigate the contributions of the use of interactive classes and Geogebra software for the learning of proportionality and rule of three, having as one of the specific objectives to analyze the students' previous knowledge about the concepts of the stated contents. We use as theoretical foundation the theory of the records of semiotic representations of Duval (2001) and the significant learning of Ausubel. We characterize it as a case study in a qualitative approach. The data were collected through questionnaires, and the results obtained were significant when the general performance of the observed class was taken into account.