Ibanez, E. and Pentang, J.T. 2021. Socio-Constructivist Learning and Teacher Education Students’ Conceptual Understanding and Attitude toward Fractions . Indonesian Research Journal in Education |IRJE|. 5, 1 (Apr. 2021), 23-44. DOI:https://doi.org/10.22437/irje.v5i1.12187.