Albarracín-Villamizar CZ, Hernández-Suárez CA, Prada-Núñez R. Learning objects and number thinking skills development: Analysis using a quasi-experimental design. AiBi Revista de Investigación, Administración e Ingeniería [Internet]. 2020 Sep. 1 [cited 2026 Aug. 12];8(3):131-7. Available from: https://revistas.udes.edu.co/aibi/article/view/2196