METHODOLOGY FOR DEVELOPING COGNITIVE ACTIVITY IN CHILDREN THROUGH FORMATION OF ELEMENTARY MATHEMATICAL CONCEPTS. International Bulletin of Applied Science and Technology, [S. l.], v. 6, n. 3, p. 199–202, 2026. DOI: 10.37547/. Disponível em: https://researchcitations.com/index.php/ibast/article/view/6747. Acesso em: 26 mar. 2026.