Abstrak
Some of the problems in mastering vocabulary among students are very diverse, ranging from errors in spelling, pronunciation, and choosing the right words in writing and speaking. This research aims to analyze the improvement in vocabulary mastery in class VIII students at MTs HUBBUL WATHAN TABUYUNG, through the use of wordwall learning media. This research is classroom action research. The subjects of this research were 24 class VIII students, data collection techniques was tests. The average student score before using wordwall media was 73.00. The results of data analysis, the average score of students' vocabulary tests in cycle I was 98.75 and the average score of students' vocabulary tests in cycle II was 99.5. Cycle II experienced an increase of 26.5 from the average student score before using wordwall media. So, student learning outcomes in vocabulary mastery through the use of wordwall media for class VIII students at MTs HUBBUL WATHAN TABUYUNG increased. The implications of the research are that English teachers are expected to use wordwall learning media because it can improve students' vocabulary mastery.