(Peer Review + Dokument + Similarity) The Use of Video as a Media to Improve Students’ Vocabulary Mastery

The objective of this Classroom Action Research was to improve students’ vocabulary mastery by using video as a media in teaching and learning process. It covered four stages of activities, they were planning, implementing, observing, and reflecting of the action. The subject of this research was class VII C of SMP Muhammadiyah 1 Jember. In this research, the primary data were collected from the vocabulary test while the observation check list as supporting data was taking during the teaching and learning process. Video as a media of teaching and learning vocabulary improved students vocabualry mastery in two cycles from the percentage of students scored ≥ 70,was 69% in cycle 1 to 80% in cycle 2, it also improved students’ active participation from 55% in cycle 1 to 77% at the end of the cycle 2. Based on the research result, it can be concluded that
the video as a media of teaching English vocabulary was able to improve the seventh grade students’ vocabulary mastery and students’ active participation.