Projeções ortogonais de objetos tridimensionais no ensino médio

Abstract

This experience report corresponds to reflections made from an unpublished mathematics class developed as a Completion Work of a Specialization Course for High School Mathematics Teachers Matem@tica at Pr@tica. The purpose is to present and analyze a didactic proposal based on activities involving orthogonal projections, using as a basis the Piagetian theory regarding the construction of the notion of space and cooperative learning. For this, the games La Boca and Mental Blocks were used as a starting point to understand the limits and possibilities of building the ability to perform orthogonal projections of three-dimensional objects by students of the first and third year of high school in a public school located in the city of Canoas/RS, general objective of this study. The results obtained from a questionnaire applied to students, as well as the analysis of the work developed after playing, indicate that cooperative learning is an important strategy for the construction of the spatial notion, especially regarding the orthogonal projections of geometric solids. It is concluded with this study that cooperative activities involving orthogonal projection games involve, approach and motivate students to learn and contribute to the learning of their colleagues.