LEARNING -EDUCATIONAL DESIGN BASED ON THE COGNITIVE BURDEN STRATEGY AND ITS EFFECT IN PRIMARY SCHOOL PUPILS ACHIEVEMENT TOWARDS MATHEMATICS. Sciental Journal of Education Humanities and Social Sciences, [S. l.], v. 4, n. 4, p. 73–86, 2026. DOI: 10.62536/sjehss.2026.v4.i4.pp73-86. Disponível em: https://scientaljournals.com/index.php/SJEHSS/article/view/227. Acesso em: 25 apr. 2026.