Aprendizagem baseada em projetos e difusão de inovações: um estudo com alunos do ensino médio

This article presents a qualitative research involving three classes of high school students from a brazilian public school. On the development of an interdisciplinary project of Mathematics and Portuguese Language, analyzed under the theoretical framework of the Theory of the Diffusion of Innovations. We intend to discuss the possible contributions of an approach through projects of apparently  distant  curricular  themes,  such  as  trigonometric  functions  and  the  literary  aesthetic  of Romanticism, highlighting the  use  of the  application for  GeoGebra  smartphones.  In  this  case, the connection between these two disciplines was established through music. Technological mediation took place through access to music, videos, poems and, above all, by the exploitation of GeoGebra's algebraic and  geometric  resources. At the end  of the project, we consider the  positive experience, both in the attitudinal aspects, as the mobilization of interest and motivation of the students, as well as in the cognitive aspects, expressed by the quality of the final products of their researches presented.