ABSTRACT Mandasari, Vania Vudith. 2022. Improving Students” vocabulary mastery through Gogos Lesson for the 3 grade Student of the naff international school. Thesis, Department of English Language Tiducation, F ty of Tarbiyah, State Islamic Institute (LAIN) of Kediri. Advisors: (1) Mohammad Muhyidin, M. Pd., (I) Ria akhruriana, M.Pd Keyword: Gogos Lesson, Students" Vocabulary, Classroom Action Research, Vocabulary Master The research is about the improving students” vocabulary mastery through Gogos Lesson. Classroom Action Research (CAR) is an approach that is used to improve the students" vocabulary improvement in answering the guestions, The researcher used elassroom action research which consists of two cyeles with the students of third-grade students, a group of 16 individuals used observation and test, furthermore in analyzing data the researcher used gualitative and guantitative data. The results of the research at the cycle 1 was inadeguate. The data showed that there still lack of students” ability of vocabuary answers. At cycle I in meeting 1 for students” voeabulary mastery, it was only 31,2594 (5 students from 16 total) complete students and 68,754 (1 students from 16 total) incomplete students. Meanwhile after giving actions in the mecting 2, in the meeting 3 and in the meeting 4 it was finally improved, there were 5096 (8 students from 16 total) complete students and 5094 (8 students from 16 total) incomplete students. It means there was an improvement 5096, but the target was not achicved in this cycle. Furthermore, the data showed a significant improvement at the cycle 2. The meeting meeting had 50746 (8 students from 16 total) complete students and 5076 (8 students from 16 total) incomplete students. The meeting 2 had 62,594 (10 students from 16 total) complete students and 37,594 (6 students from 16 total) incomplete students but after giving action at the meeting 3, it was finally improved, the data show that there was 7576 (12 students from 16 total) complete students and 25Y4 (4 students from 16 total) incomplete students. "The researeh target in this cycle was achieved. By this result, it showed the first year students at Naff International School, especially in class third-grade students, a group of 16 individuals have good vocabulary mastery through Gogos Lesson Cartoon. Thus the researcher coneluded that improving student vocabulary mastery through gogos Lesson for the 3 grade student of the naff intemational school was achieved Ho aw KK TSOHCO SD pop 0

Mandasari , Vania Yudith .   (2022). Improving Students Vocabulary Mastery Through Gogos Lessons For The 3 Grade Student Of The Naff International School. IAIN Kediri