<![CDATA[This study was motivated by the low learning outcomes of fifth-grade students in the Natural and Social Sciences (IPAS) subject at SDN Tompomulyo 02. One of the factors contributing to the low learning outcomes was the limited use of engaging learning media, resulting in teacher-centered learning. This study aimed to analyze the effectiveness of a three-dimensional Question Board learning media using the Sketchfab platform in improving the learning outcomes of fifth-grade students at SDN Tompomulyo 02. This study employed a quantitative approach using a one-group pretest-posttest design. The research subjects consisted of 32 fifth-grade students at SDN Tompomulyo 02. The research instrument was a learning achievement test. Data were analyzed using a paired-samples t-test with IBM SPSS Statistics 26 after meeting the normality assumption. The results showed that the average student score increased by approximately 50%, from 50.875 in the pretest to 75.250 in the posttest. The paired-samples t-test yielded t = −22.507 with p = 0.000 (p < 0.05), indicating a statistically significant difference between students' learning outcomes before and after using the developed learning media. Furthermore, the N-Gain score was 0.510 (51.04%), which falls into the moderate category and indicates that the learning media was moderately effective. Therefore, the three-dimensional Question Board learning media using the Sketchfab platform was proven to be sufficiently effective in improving the learning outcomes of fifth-grade students at SDN Tompomulyo 02.]]>
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