A utilização de applets no geogebra para a aprendizagem da trigonometria no Ensino médio

Abstract

This paper aims is to create, execute, and analyze an interactive and dynamic didactic sequence that provides the learning of fundamental concepts of trigonometry in High School. The activities of the sequence include eight Applets (mini-application) in the software GeoGebra with eight investigative activities. The methodological intervention was applied to students from the second grade of a public High School in Marechal Deodoro, AL. The study was based on the following theoretical-methodological references: Didactic Engineering by Michèle Artigue, Theory Didactical Situations by Guy Brousseau and Theory of Register of Semiotic Representation by Raymond Duval. The results, after the analysis of activities, show that the Applets are a didactic tool that makes the classes more dynamic, motivating the students and promoting the construction of conjectures, proprieties and trigonometric relations. The educational products of this dissertation are a CD and a blog with the didactical sequence was developed, applied and analyzed, involving trigonometric relations with the use of GeoGebra, that may be used by teachers and students from High School. The CD is attached to this dissertation and the blog is available in: http://edcarlospereira.wix.com/trigonometriaapplets.