Direct Current Electric Teaching Materials Through Google Classroom for 16-17 Years Old Students: Teacher Perception. Online Learning In Educational Research (OLER), [S. l.], v. 1, n. 1, p. 25–36, 2021. DOI: 10.58524/oler.v1i1.17. Disponível em: https://journal.foundae.com/index.php/oler/article/view/17. Acesso em: 16 jan. 2026.