<![CDATA[This study aims to determine the effect of the Numbered Heads Together (NHT) cooperative learning model assisted by Picker Wheel media on Pendidikan Pancasila learning outcomes of third-grade students at SDN 066650 Medan Kota. Preliminary data showed that only 40% of the 40 third-grade students reached the minimum mastery criterion (KKTP), indicating low learning outcomes under conventional, teacher-centered instruction. This research used a quantitative approach with a quasi-experimental method and a Nonequivalent Control Group Design, involving an experimental class (III-B, n=20) taught with NHT assisted by Picker Wheel and a control class (III-A, n=20) taught conventionally, selected through total sampling. The instrument consisted of 30 multiple-choice items, of which 25 items were declared valid (rcount > 0.443) with a reliability coefficient of 0.89 (very high category). Data were analyzed using Jamovi version 2.7 through Shapiro-Wilk normality test, Levene's homogeneity test, and an independent samples t-test. The results showed that the mean score of the experimental class increased from 47.0 (pretest) to 81.6 (posttest), a gain of 34.6 points, with mastery level rising from 0% to 85%. The control class increased from 47.4 to 66.4, a gain of 19.0 points, with mastery rising from 0% to 45%. The independent samples t-test yielded t = 4.37, df = 38, p < 0.001, and a mean difference of 15.2 points, indicating a statistically significant effect. It is concluded that the NHT cooperative learning model assisted by Picker Wheel media has a significant positive effect on the Pendidikan Pancasila learning outcomes of third-grade elementary school students.]]>
