Classroom Observation of Mathematics Teachers’ Use of Instructional Materials in Teaching Geometry in Selected Technical Secondary Schools in Muhanga District, Rwanda. Educational Journal of Technology and Innovation, [S. l.], v. 2, n. 1, p. 50–63, 2026. DOI: 10.58197/xmjjyc96. Disponível em: https://journals.parabolumpublishing.org/index.php/ejti/article/view/114.. Acesso em: 22 oct. 2026.