This study aims to examine the effect of problem-based learning models on the activities of fourth grade elementary school students and analyze the effect of problem-based learning models on the analytical skills of fourth grade elementary school students. Implementation of problem-based learning models requires students to actively work together and analyze the problems being studied so that theoretically the application of this model affects the activities and ability of student analysis. This research is an experimental research design with pretest posttest control group design. The subjects of this study were fourth grade students at SDN Tawangsari 1 Sidoarjo. Data collection techniques through observation of student activity sheets and tests of student analysis skills. The analysis technique used is the t test. In this case the t test was carried out twice, first, to find out the initial conditions of the experimental group and the control group and second to find out the conditions after being treated. The results of the t test activity analysis and the students' analytical skills between the control class and the experimental class before being treated showed no significant difference (tcount 1.222 < ttable 2.011 and sig. 2 tailed value 0.233 > 0.05 student activity; tcount 0.164 < ttable 2.011 and the value of sig.2 tailed 0.871 > 0.05 analytical skills). While the results of the t test after being treated showed that there were significant differences between the experimental group and the control group (tcount 3.689 > ttable 2.011 and sig value 2 tailed 0.001 < 0.05 student activity; tcount 2.558 > ttable 2.011 and sig. 2 tailed value 0.015 < 0.05 analytical skills). In this study, treatment is the only differentiator between the experimental group and the control group, so it can be concluded that there is an effect of the application of problem-based learning models to the students' activity and analytical skills. For teachers who face the problem of low activity and analytical skills students are advised to use problem-based learning models.

Keywords : Problem Based Learning Model, Student Activities, Analytical Skill, Social Studies.