This research is motivated by a problem of low student learning outcomes caused by the application of less effective and innovative learning models in learning activities, especially in the subject of Social Sciences (IPAS) at SDN 3 Tanjung Lago. The purpose of this study is to determine the effect of the Project Based Learning (PjBL) learning model on student learning outcomes in the subject of Natural and Social Sciences (IPAS) material Chapter 6 topic B about the richness of Indonesian culture with the subject of research being grade IV students at SDN 3 Tanjung Lago. This researchis a type of quantitative research using the Quasi Experiment method with Nonequivalent Control Group Design. Data collection techniques in this study are in the form of tests (pretest and posttest), observation sheets, interviews and documentation. Data analysis techniques in this study are normality tests, homogeneity tests and hypothesis tests. The results of the Shapiro Wilk normality test analysis show that the sig. value > 0.05 means that the data is normally distributed. Then from the results of thehomogeneity test analysis shows that the sig. value 0.825 > 0.05 means that the data is homogeneous. Furthermore, the learning outcome data were analyzed using the Independent Sample T-test which showed that the sig. (2-tailed) value was 0.000 <0.05, which means that Ho was rejected and Ha was accepted. So it can be concluded that there is an influence of the Project Based Learning (PjBL) learning model on the learning outcomes of grade IV students of SD Negeri 3 Tanjung Lago.
                        
                        
                        
                        
                            
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