Pincheira, Nataly, and Ángel Alsina. “Assessing Knowledge to Teach Early Algebra from the Mathematical Knowledge for Teaching (MKT) Perspective: A Support Tool for Primary School Teachers”. Journal on Mathematics Education 15, no. 2 (April 3, 2024): 639–660. Accessed November 24, 2024. http://jme.ejournal.unsri.ac.id/index.php/jme/article/view/573.