Camila Augusta do Nascimento, Maria Alice Veiga Ferreira de Souza, and Arthur Belford Powell. “Construction of the Fraction Concept from a Measurement Perspective: Contributions of the 4a Instructional Model”. Revista Latinoamericana de Investigación en Matemática Educativa 25, no. 3 (November 30, 2022): 263–288. Accessed October 23, 2026. https://www.relime.org/index.php/relime/article/view/105.