Developmental variation, sociocultural influences, and difficulties in mathematics. Edma 0-6: Educación Matemática en la Infancia, [S. l.], v. 3, n. 2, p. 1–22, 2014. DOI: 10.24197/edmain.2.2014.1-22. Disponível em: https://revistas.uva.es/index.php/edmain/article/view/5836. Acesso em: 17 jan. 2026.