This study aims to determine the use of problem based learning methods assisted by flip chart media in improving student learning outcomes in the subject of science in class III SDK STA. Maria Assumpta Kupang. The type of research used is Classroom Action Research (CAR) which consists of 4 stages, namely planning, implementation, observation and reflection. The data analysis technique used is descriptive analysis, Quantitative. The subjects in this study were class IIIc with a total of 27 students. The results of the study obtained student completion scores in cycle I meeting I of (58%) and meeting II of (59%), experiencing an increase in cycle II at meeting I of (91%) and meeting II of (93%). Based on the results of this study, it can be concluded that the application of problem based learning models assisted by flip chart media can improve student learning outcomes in the material of energy sources around us in class III SDK STA. Maria Assumpta Kupang.
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