Affiliations:
1Faculty of Education, Mahasarakham University, Kham Riang, Thailand
2Department of Mathematics, Triam Udomsuksa Pattanakan Roiet, Roi Et, Thailand
The purpose of this study was to develop game-based learning lesson plans on the concept of similarity for Grade 9 mathematics, evaluate students’ learning achievement before and after instruction, and examine their satisfaction with this approach. The study employed a quasi-experimental one-group pretest–posttest design. The participants consisted of 11 Grade 9 students from Triam Udomsuksa Pattanakan Roi Et School. The research instruments included nine game-based lesson plans, an achievement test, and a satisfaction questionnaire. Data were analyzed using the Wilcoxon Signed Ranks Test, along with percentage, mean, and standard deviation. The results indicated that students’ posttest scores were significantly higher than their pretest scores at the 0.05 significance level. In addition, the students’ overall satisfaction with the game-based learning approach was at the highest level. This study contributes empirical evidence supporting the effectiveness of game-based learning as a pedagogical approach for improving both academic achievement and student engagement in secondary mathematics.
Game-based learning, Mathematics education, Similarity concept, Learning achievement, Student satisfaction
https://doi.org/10.21833/ijaas.2026.03.017
Soontharin, P., Boonsa, J., & Poonputta, A. (2026). Improving Grade 9 students’ mathematics achievement in similarity through game-based learning. International Journal of Advanced and Applied Sciences, 13(3), 174–179. https://doi.org/10.21833/ijaas.2026.03.017