This research was to improve students’ vocabulary mastery by using
Scrabble game. The objective of this research was to improve students’
vocabulary mastery of the 1st grade student s in Mts Muhammadiyah
Purwokerto by using scrabble game. The participant of this research were 21
students in 7A class. This research was conducted in two cycles. Each cycle
consisted of planning, acting, observing, and reflecting. In collecting data, test
as the quantitative data, and also observation and questionnaire as qualitative
data were used. The result of the research could be seen from students’
observation in cycle 1 was 61.75% and in cycle 2 was 70.87%. Whereas, the
percentage score post-test 1 was 66.60% and in post test 2 was 85.71%
students’ vocabulary test result, the score percentage reached as the
KKM, and the learning completeness reached 85% as the successful learning
target. Futher, from the questionnaire, 91.88% students gave positive answer of
the question given. Based on the result of the research it could be conducted
that the use of scrabble game could improve students’ vocabulary.