Abstract
Abstract
The critical thinking skills are an important component to be instilled in elementary schools. The purpose of this study was to test the critical thinking skills of fifth grade students elementary school through the Problem Based Learning model and the Inquiry model based on the interest in learning social science using authentic assessments. Employing a quasi-experiment with Pretest-Posttest Control Group Design, this study involved 49 fifth grade elementary school students in two classes. A total of 24 students in the experimental class A learned using the Problem Based Learning (PBL) model, whereas 25 students in the experimental class B learned using the Inquiry model. The data were collected using description tests and questionnaires. The test was based on the level of reliability of 0.551, while the questionnaire with reliability of 0.893 was tested using ANOVA. The results of the study revealed that the implementation of the PBL model in social science learning was quite effective in improving critical thinking skills compared to the Inquiry model. The highest critical thinking ability was in students who had high learning interest in social science learning. This research contributed differently to the improvement of the social science learning process to acquire one of the 21st century thinking skills.