Usando o geogebra para analisar os níveis do pensamento geométrico dos alunos do ensino médio na perspectiva de Van Hiele

Abstract

The present dissertation had the purpose to investigate the levels of geometric thinking of students of public school in the city of Paranagua/PR, having as theoretical foundation the Theory of Van Hiele. Thus, in order to achieve the proposed objective, it was used the Educational Technologies, through activities developed with Geogebra software. The research participants were students of three classes of the first year of the High School of a public school of the city of Paranaguá. They performed 13 (thirteen) activities corresponding to 15 (fifteen) skills indicated in the theoretical framework used, divided into three levels: level 0 (visualization), level 1 (analysis), level 2 (informal deduction). The methodology used for this research was exploratory and applied. By analyzing the data collected in the resolution of activities, it can be concluded that the majority of the students reached level 0 and a lower percentage of the students managed to reach level 1. In relation to level 2, it can be verified that it was the most difficult level to achieve in the three classes. These results point out the students of the school where the research was carried out do not hold the visual, verbal, logical, design and application skills that correspond to the level of education, according to Van Hiele Theory. In addition to the proposed objective, this research corroborates the works of Pavanelo (1993), Lorenzato (1995), Passos (2000) and Barbosa (2003) among others who talk about the abandonment of geometry in Brazilian schools. The results obtained are worrisome, as this lag causes the lack of understanding of the contents that will be worked on later. Therefore, some actions in the planning of the teaching-learning process of geometry need to be rethought. At the local level, it is intended to present the results of this research to the pedagogical team of the school, as well as teachers in the Mathematics area, so that the planning and strategies are organized in order to improve students' geometric thinking abilities so that they can approach the level that is appropriate to them, according to the theory used.