Zulkarnaen, R. and Aziza, A.K. 2026. Teachers’ Roles in Designing and Implementing Numeracy-Oriented Instruction in Junior High School Mathematics: A Multiple Case Study. Journal of Mathematics Instruction, Social Research and Opinion. 5, 1 (Mar. 2026), 809–824. DOI:https://doi.org/10.58421/misro.v5i1.1204.