Sangsri, K., Chuangsoongnern, R. and Srisiriwat, T. 2026. The Study of Mathematics Learning Achievement on Fraction by Using Cooperative Learning TGT Technique Combined with the Mathematics Board Games for Grade 7 Students. An Online Journal of Education. 21, 1 (Jun. 2026), 1–16. DOI:https://doi.org/10.14456/ojed.2026.20.