Framework for Evaluating Math Educational Materials for Constructing Early Number Concept. International Journal on Studies in Education, [S. l.], v. 3, n. 1, p. 48–60, 2020. DOI: 10.46328/ijonse.31. Disponível em: https://ijonse.net/index.php/ijonse/article/view/1816. Acesso em: 22 jun. 2025.