<![CDATA[This study aims to determine the effect of implementing the Problem Based Learning model assisted by mystery box media on the learning outcomes of Pancasila Education among fourth-grade students at SD Negeri Hindu 4 Batuan Gianyar. The research employed a quantitative approach using a pre-experimental method with a one-group pretest-posttest design. The study subjects consisted of 28 students (15 male and 13 female) selected using a saturated sampling technique. Data were collected using a 20-item multiple-choice test that had been validated for validity and reliability. Data analysis techniques included descriptive statistics, Shapiro-Wilk normality test, and paired sample t-test for hypothesis testing. Descriptive analysis results showed an increase in mean scores from 53.39 (pre-test) to 83.57 (post-test), both exceeding the Minimum Passing Score (MPS) of 70. The Shapiro-Wilk normality test yielded significance values of 0.321 for pre-test and 0.161 for post-test, both greater than 0.05, indicating that the data were normally distributed. The paired sample t-test produced a significance value (Sig. two-tailed) of 0.000 < 0.05, leading to the rejection of H₀ and acceptance of H₁. Therefore, the Problem Based Learning model assisted by mystery box media has a significant effect on the Pancasila Education learning outcomes of fourth-grade elementary school students.]]>
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