This study aims to determine the increase in student learning outcomes in class XI IPS 2 SMA Negeri I Samaturu by applying the problem solving learning model to the material of Indonesian cultural diversity. type of research is Classroom Action Research. The instruments used in this study were test questions and observation sheets. The results of this study indicate that there is an increase in student learning outcomes classically from cycle I to cycle II. In the first cycle of students who achieved the learning completeness criteria there were 12 students with a percentage of 34%, while students who did not reach the learning completeness criteria there were 23 students with a percentage of 66%. In the second cycle, there were 27 students who succeeded in achieving the learning completeness criteria with a percentage of 77% while those who did not achieve learning completeness were 8 students with a percentage of 23%. From the data on student learning outcomes in cycle I and cycle II, it shows that the application of the learning modelProblem Solving Learning managed to increase student learning outcomes. Learning with the problem solving learning model makes students actively seek and find solutions related to Indonesian cultural material, students are more enthusiastic about participating in lessons, and have the courage to ask questions, answer questions and provide solutions to problems discussed with their group mates.
                        
                        
                        
                        
                            
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