Geometria Sona GeoGebraBook: um livro digital dinâmico como potencializador das aprendizagens de geometria na educação básica a luz da perspectiva decolonial da etnomatemática

Abstract

This article aims to analyze the application of a GeoGebraBook as a didactic proposal that enhances geometry learning in basic education in light of the decolonial perspective of ethnomathematics. For this, we built a GeoGebraBook as a teaching resource, using the GeoGebra software and created a teaching sequence that covers the knowledge object of Symmetries. In this approach, we use the decolonial perspective of ethnomathematics presentin Sona Geometry of Angola, showing possibilities of behavior, in educational spaces, na atmosphere of resistance, deconstructing the idea of aunique mathematics and, promoting the appreciation of knowledge of people intentionally made invisible by the process of colonization. The construction integrated special lesson planning for 7th year elementar school classes. The didactic proposal was submitted to peer evaluation and, in this evaluation, we found that it was considered innovative and necessary in the educational contexto with potential to contribute to learning. There was a unanimous and favorable opinion regarding the stimulation of student interest and engagement, and that the resources developed complemented and reduced the learning of symmetries. Accessibility for use in classes was 85.7% and the schools' infrastructure are among the main difficulties related to na application close to ideal, but everyone guaranteed a willingness to adapt to their realities. The majority were unaware of the decolonial perspective and emphasized the importance of the theme for social formation. Finally, we suggest the development of future work with similar didactic proposals addressing other objects of knowledge and adaptations that favor accessibility for students with disabilities.