Lugares geométricos na educação básica: uma proposta de ensino com o aporte do GeoGebraBook

Abstract

The present work is a teaching proposal about the theme of Geometric Loci, aimed at Basic Education teachers, prepared with the help of GeoGebraBook and the GeoGebra software. Contextualized and interactive, this proposal seeks, through mathematical investigation and Dynamic Geometry resources, to explore the theme in question gradually and softly, without losing sight of mathematical rigor, and placing the reader (teacher/student) as an active agent in the learning process. It was divided into two parts: one addressing Elementary Education, composed of basic geometric loci (circle, perpendicular bisector, angle bisector, pair of parallel lines, and arc capable), as well as the method of geometric loci and the notable points of a triangle (circumcenter, incenter, barycenter, and orthocenter); and the other addressing High School, related to the study of conics (ellipse, hyperbola, and parabola), exploring their respective definitions, elements, eccentricities, as well as construction methods, and also the method of geometric loci. It is worth noting that the work was substantially developed in the field of Synthetic Geometry, where, through the properties of geometric figures and the relationships between their elements, the beauty of Geometry is highlighted.