Modelagem e impressão 3D como ferramenta de ensino da geometria

Abstract

This dissertation explores the use of 3D modeling and printing as a pedagogical tool for teaching geometry in lower secondary education. Recognizing the challenges commonly faced in teaching geometric content—often delayed or addressed in a purely theoretical manner—the study proposes an innovative and practical approach that integrates technology into mathematics education. Using the Tinkercad platform, a didactic sequence was developed for 8th and 9th-grade students, focusing on topics such as volume of solids, ratio, proportion, and percentage. Students create 3D models of geometric shapes and then print them, transforming abstract mathematical concepts into tangible objects. The adopted methodology enables more meaningful and engaging learning experiences, aligned with the Brazilian National Common Curricular Base (BNCC), while also fostering skills such as creativity, spatial reasoning, and problemsolving. The results indicate that integrating mathematics with digital technologies can make the teaching and learning process more effective, attractive, and aligned with 21stcentury educational demands.