The Effect of Using Word Wall To Improve Students’ Vocabulary At SMP Kartika 1 and 2 Medan

This study examines the effectiveness of Word wall media in enhancing vocabulary acquisition among seventh-grade students at SMP Kartika 1&2 Medan through Classroom Action Research (CAR) methodology. The implementation followed a three-phase cyclical process: preliminary cycle, Cycle I, and Cycle II, involving Class VII-2 students as research participants. Quantitative data collected through vocabulary assessments administered during each research phase demonstrated progressive improvement, evidenced by rising mean scores and statistically significant results (p < 0.05). The findings conclusively establish Word Wall as an effective instructional tool for vocabulary development. This research proposes the adoption of this strategy as an innovative and engaging alternative for English language instruction.