Pinto Marín E, Ayala-Altamirano C, Molina M, Cañadas MC. Development of Algebraic Thinking Through Justification in Elementary Education. ensciencias [Internet]. 2023 Mar. 2 [cited 2025 Jun. 6];41(1):149-73. Available from: https://ensciencias.uab.cat/article/view/v41-n1-pinto-ayala-molina