Gallardo Herrerías, Celia. Adaptive Teaching of Fractions: A Comparative Educational Approach in the United States and Spain. Revista Universitaria del Caribe 33, no. 1 (junio 25, 2026): 17-28. Accedido julio 1, 2026. http://165.98.43.32/index.php/Caribe/article/view/1612.