RABILLAS , Annabelle; KILAG, Osias Kit; CAÑETE , Neil; TRAZONA , Maria; CALOPE , Mery Lou; KILAG , Jacqueline. Elementary Math Learning Through Piaget’s Cognitive Development Stages. International Multidisciplinary Journal of Research for Innovation, Sustainability, and Excellence (IMJRISE), [S. l.], v. 1, n. 9, p. 202–210, 2024. Disponível em: https://risejournals.org/index.php/imjrise/article/view/678. Acesso em: 6 aug. 2026.