Platonic solids in 3D printing

a pedagogical material for teaching geometry

Abstract

The proposal presents the development of a pedagogical material aimed at teaching Spatial Geometry, using the five Platonic Solids (tetrahedron, cube, octahedron, dodecahedron, and icosahedron) 3D printed. The initiative seeks to facilitate the understanding of the geometric properties of these solids through the manipulation of physical models, promoting learning in a more concrete, interactive, and accessible way. The material was produced using 3D printing, allowing the creation of low-cost objects that can be easily reproduced by schools and universities. A distinguishing feature of the proposal is the use of the models for visually impaired students, making the resource accessible to a wider audience. The objective is to promote spatial reasoning, geometric perception, and inclusion in Mathematics education. In addition to contributing to both basic and higher education, the material can also be used in museums, science fairs, and science outreach spaces. This proposal aims to expand access to innovative pedagogical materials and stimulate the use of digital technologies in educational contexts.