<![CDATA[This study aims to determine how the use of the Problem-Based Learning (PBL) model can improve student learning outcomes in Social Studies (IPS) learning and to assess student learning outcomes when using the PBL model. This research is a classroom action research (CAR), which is a practical study intended to improve learning in the classroom. The subjects of this study were 20 fourth-grade students of SD Inpres Beru. The research data were collected using field notes, interviews, and documentation techniques. Based on the research design used, data analysis was conducted through analysis and reflection in each cycle, based on observations recorded in field notes and other observation formats. The teacher carried out learning activities according to the indicators and learning objectives, and students actively presented the results of their discussions in front of the class. Through the application of the Problem-Based Learning model in Social Studies learning on the topic of "Cultural Diversity of My Nation" in fourth grade at SD Inpres Beru, data on learning outcomes and observations during the learning process in each cycle were obtained. The data from this study indicate an increase in teacher activity, student activity, and overall learning outcomes in Social Studies. In the first cycle, student learning outcomes were categorized as fairly good, as evidenced by a completion rate of 70% and a class average score of 79. Based on these results, the study proceeded to the second cycle. The results of the second cycle showed an improvement in learning outcomes, with a completion rate of 100% and a class average score of 90.]]>
