<![CDATA[This study aims to determine the effect of the Problem Based Learning (PBL) model assisted by interactive Wordwall media on student learning outcomes in natural and social sciences (IPAS) in grade IV at SDN 127 Sekeloa. Education does not only aim to produce intelligent human resources but also forms character and independence. However, the lack of media innovation and teacher-centered learning models often demotivates students, leading to low learning outcomes. This study used a quantitative method with a quasi-experimental design (Pretest-Posttest Control Group Design). The population was all grade IV students of SDN 127 Sekeloa. The sampling technique used saturated sampling consisting of class IV-A as the experimental class (30 students) and class IV-B as the control class (30 students). Data collection was conducted through validated multiple-choice tests (pretest and posttest), observation, and documentation. Data analysis included normality tests, N-Gain calculation, effect size, and Paired Sample t-Test. The results showed the experimental class posttest average was 81.60, higher than the control class (66.87). The hypothesis test showed a significance value of 0.000 < 0.05, and an effect size of 1.46 (very strong). It can be concluded that the implementation of the Problem Based Learning model assisted by Wordwall has a significant effect on improving student learning outcomes.]]>
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