Impact Methodology representation abstract on efficiency Iraqi pupils fifth grade and their motivation in learn fractures. Journal Port Science Research, [S. l.], v. 2, n. 1, p. 137–148, 2019. DOI: 10.36371/port.2019.02.1.9. Disponível em: https://jport.co/index.php/jport/article/view/20. Acesso em: 13 may. 2026.