Playful Learning: Teaching the Properties of Geometric Shapes through Pop-up Mechanisms for Kindergarten. International Journal of Education in Mathematics, Science and Technology, [S. l.], v. 11, n. 1, p. 179–197, 2022. DOI: 10.46328/ijemst.2921. Disponível em: https://ijemst.com/index.php/ijemst/article/view/576. Acesso em: 23 jul. 2025.