<![CDATA[This study aimed to investigate the effect of using song lyrics and picture media on the English vocabulary mastery of fourth-grade elementary school students. The study was motivated by the low level of students’ vocabulary mastery, which was caused by the use of conventional teaching methods that tended to be monotonous, teacher-centered, and less engaging. To address this problem, the researcher implemented a combination of song lyrics and picture media as an alternative instructional strategy to create a more meaningful and enjoyable learning experience. This research employed a quantitative approach using a One-Group Pre-test–Post-test Design. The sample consisted of 30 fourth-grade students selected through purposive sampling. The research instrument was an English vocabulary test administered as both a pre-test and a post-test. The validity of the instrument was examined using the Pearson Product Moment correlation, while its reliability was measured using the Kuder-Richardson Formula 20 (KR-20). Data were analyzed using descriptive statistics, the N-Gain score to determine the improvement in students’ learning outcomes, and a paired-sample t-test to examine the significance of the difference between the pre-test and post-test scores. The findings revealed that the mean pre-test score was 59.67, which increased to 81.80 in the post-test. The calculated N-Gain score was 0.55, indicating a moderate level of improvement in students’ English vocabulary mastery after the implementation of the instructional media. Furthermore, the paired-sample t-test demonstrated a statistically significant difference between the pre-test and post-test results. Therefore, it can be concluded that the use of song lyrics and picture media has a positive and significant effect on improving the English vocabulary mastery of fourth-grade elementary school students. These findings suggest that integrating music and visual media into English language instruction can serve as an effective strategy for enhancing vocabulary learning at the elementary school level. ]]>
