Felipus Tamoes Pengarang NOVRIANI RABEKA MANAFE Dosen Pembimbing 1 Yunita R. Bani Bili, S.Pd., M.Ling Dosen Pembimbing 2 Novriani Rabeka Manafe Penguji 1 Prof. Drs. Josua Bire, MA., M.Ed., Ph.D Ketua Penguji

ABSTRACT Learning grammar is not easy for students; most students find difficulties in learning grammar. There were still many grammatical errors or inappropriate sentence structures. Therefore, the writer applied a game expected to increase the students’ English grammar. The objectives of this study were (1) to know how the Team Game Tournament can help tenth-grade students of SMK Swastisari Kupang increase their English grammar. (2) To know the strengths and weaknesses of implementing the Team Game Tournament (TGT) to increase the English grammar of the tenth-grade students of SMK Swastisari Kupang. This study used classroom action research (CAR). The subject of this research was the tenth-grade students of SMK Swastisari Kupang in the academic year 2021/2022. The writer chose the students from Accounting Class and Marketing class, which had 16 students. The data collection technique used in this study was triangulation, consisting of a written test, observation sheet, and questionnaire sheet. Meanwhile, the data compilation methods in this research used the CAR model by Kemmis and Mc Taggart’s theories. The data were analyzed both descriptively and qualitatively. The study finds that applying the TGT in SMK Swastisari Kupang can increase students’ learning activities in English subjects, especially the simple past tense. Besides the success of implementing the TGT, there are still some weaknesses that the writer found. They are 1) Based on the result of observation, the TGT was successfully implemented according to the procedure but had not seen an increase in activity student learning. This happened because the researcher had not maximized the game application. In the TGT game, the researcher also needed a lot of time to prepare equipment and game procedures; 2) based on the interview, some students were less active in the game group because there were students who tendssed to dominate. The application of the game method can increase student learning activities in the tenth grade of SMK Swastisari Kupang in English subjects, especially the simple past tense. Keywords: application, TGT, English grammar