Elementary school is the initial foundation of all subsequent levels of schooling. In the process of forming character, skills and knowledge of students, one of the teacher's problems is how to choose learning media that matches the material being taught. The problem found is that the teacher has not developed learning that makes students active. This resulted in a boring learning atmosphere and Social Sciences (Social Studies) learning conducted by the teacher was still limited to rote material. Students are only treated to material without regard to other abilities that should be mastered by students. The research objective was to improve students' problem solving skills through the application of social inquiry learning models to fourth grade students at SD GMIT Bakitba. Research using classroom action research methods. Data collection techniques are observation and tests. The results showed that the activities of students and teachers in the application of the social inquiry learning model showed increased results.

Keywords : Learning models, social inquiry, elementary students, problem solving skills.