This research is Classroom Action Research (PTK) adopting the Kemmis and Taggart model. This research aims to improve student learning outcomes on social and cultural diversity material in society through the Problem Based Learning learning model with the Teaching at the Right Level (TaRL) approach. The subjects in this research were 32 students in class VII C of Bojonegoro Integrated Model Middle School. The stages of this research were carried out in two cycles, namely cycle I and cycle II, going through four stages, namely planning, implementing actions, observation/observation, and reflection. Data collection in this research uses observation sheets obtained through observations during the learning process as well as through evaluation test results at the end of each learning cycle using test instruments. The results of research carried out in cycle I obtained a completeness score of 31%, which shows that 10 students met the KKM and 22 students did not meet the KKM. In cycle II, a completeness score of 78% was obtained, indicating that there were 25 students who met the KKM and 7 students did not meet the KKM. Based on the research results, it can be concluded that the application of the Problem Based Learning (PBL) learning model with the Teaching at the Right Level (TaRL) approach to material on social and cultural diversity in society can improve student learning outcomes.
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