Assessing basic mathematical abilities of grade four learners: A constructivism perspective. JOURNAL OF EDUCATIONAL RESEARCH ON CHILDREN, PARENTS & TEACHERS, [S. l.], v. 1, n. 2, p. 72–89, 2020. Disponível em: https://ercptjournal.com/index.php/ojs/article/view/21. Acesso em: 8 nov. 2026.