ISSARANUSORN, N.; NASOK, P.; SRIRAK, W.; MESUB, S.; MANGSACHART, R.; SADUAKDEE, S. The Development of Mathematics Learning Achievement in Data Presentation and Interpretation using Graphs through the Teams–Games–Tournament (TGT) Instructional Model Integrated with Polya’s Problem-Solving Process for Grade 7 Students . Education journal Faculty of Education, Nakhon Sawan Rajabhat University , Nakhon Sawan,Thailand, v. 9, n. 2, p. 131–144, 2026. DOI: 10.2774.EDU2026.2.285861. Disponível em: https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/285861. Acesso em: 16 sep. 2026.