<![CDATA[The study aimed to examine the effectiveness of interactive Wordwall media in improving the spatial thinking skills of Grade X students at SMA Negeri 5 Palu. A quantitative approach employing a pre-experimental one-group pretest-posttest design was adopted. The participants consisted of 32 Grade X students selected through purposive sampling. Data were collected using a spatial thinking test administered before and after the intervention and supported by student and teacher response questionnaires. The data were analyzed using descriptive statistics and Normalized Gain (N-Gain) analysis. The findings revealed a substantial improvement in students' spatial thinking skills, as indicated by an increase in the mean score from 51.88 in the pretest to 94.69 in the posttest. The average N-Gain score reached 0.910, indicating a high level of learning improvement with an effectiveness percentage of 90.99%. Students also expressed highly positive perceptions toward the implementation of Wordwall (86.17%), while the teacher provided a moderate evaluation (43.28%), highlighting the importance of technological infrastructure and instructional readiness for successful implementation. The results suggest that the implementation of Wordwall resulted in a substantial increase in students' normalised learning gains. This study contributes empirical evidence supporting the integration of interactive digital media as a pedagogical strategy for strengthening spatial thinking in geography education.]]>
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