The Most Commonly Used Manipulative Materials And The  Degree To Which They Are Used In Mathematics By Sped  Teachers. Cosmos: An International Journal of Art and Higher Education, [S. l.], v. 10, n. 2, p. 9–13, 2022. Disponível em: https://acspublisher.com/journals/index.php/cijahe/article/view/13057.. Acesso em: 22 jul. 2024.