Utami, N.S. , Prabawanto, S. and Priatna, N. 2022. A didactical design for introducing the concepts in algebraic forms using the theory of praxeology. Beta: Jurnal Tadris Matematika. 15, 1 (Jun. 2022), 53–71. DOI:https://doi.org/10.20414/betajtm.v15i1.508.