Vocabulary knowledge is crucial for students' ongoing learning, yet it often faces numerous obstacles in improving it. One reason is the low literacy skills of students, especially in first-grade elementary school. This study aims to examine the significance of the use of Magical Flash Cards in improving the basic literacy vocabulary of first-grade students at Semen Elementary School. The research question addresses the need to improve students' basic literacy vocabulary through measurable learning interventions. This study used a quantitative approach with a One Group Pretest-Posttest design, involving a sample of 20 students selected using a purposive sampling technique. Data were collected using test instruments (pretest and posttest) and analyzed statistically. The Shapiro-Wilk normality test showed a normally distributed data (p=0.124). A Paired Sample t-test demonstrated a convincingly significant difference between pretest and posttest scores (p < 0.05). Normalized Gain (N-Gain) analysis showed an average increase of 0.65, categorized as moderately effective. These results prove that the Magical Flash Card media applied is effective in improving students' basic literacy vocabulary skills.
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