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This paper is aimed to describe the increase in students vocabulary and increase in students after a given material the through Audiolingual Kumon EFL Method. In this study, the writer conducted classroom action research. The subject was of the study was one class of the stiudy of the grade VII-5 of SMP Negeri 5 Kisaran which consisted of 32 students. The instrument applied in collecting the data was multiple choice test. which consisted of 10 test. Besides multiple choice test, the data was collected by using the qualitative data from The Pre-test, to the post-test in cycle 1 and 2. In learning vocabulary the researcher wantsto identify what happened in the classroom while teaching process run. The result of test in preliminary until the test in cycle two showed that there was the improvement of the number of students who passed the test. Hopefully, this outcome will certainly be useful for both teachers and students in which its audiolingual method of EFL kumon will give the progress for learning English, especially vocabulary mastery.
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