Fernández-León A, Gavilán-Izquierdo JM, Toscano R. A case study on how primary-school in-service teachers conjecture and prove: an approach from the mathematical community. j. math. educ. [Internet]. 2021 Jan. 2 [cited 2025 Jun. 24];12(1):49-72. Available from: https://jme.ejournal.unsri.ac.id/index.php/jme/article/view/3731