Mathematical problem solving skills for middle school mathematics teachers. Journal of the College of Basic Education, [S. l.], v. 28, n. 116, p. 305–320, 2022. DOI: 10.35950/cbej.v28i116.6049. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6049.. Acesso em: 3 aug. 2026.