Abstrak
Purpose This study aims to determine the effectiveness of the Teams Games Tournament (TGT) cooperative learning method in improving Arabic vocabulary mastery among eighth-grade students. Design/methodology/approach - This study used a quantitative approach with a one-group pretest–posttest design. The sample consisted of 20 students selected through total sampling. Data were collected using vocabulary tests and analyzed using a paired sample t-test with SPSS. Findings/results The results showed a significant improvement in students’ scores, increasing from 66.60 (pretest) to 82.95 (posttest), with a gain of 16.35 points. Statistical analysis indicated a significant difference (p 0.05), confirming the effectiveness of the TGT method. Originality/value - This study highlights the effectiveness of the TGT method in enhancing students’ vocabulary mastery through interactive and cooperative learning activities.