This study aims to determine the application of the Problem-Based Learning (PBL) model to improve student activity and learning outcomes in the PPL program at SMAN 17 Merangin. This study used a Classroom Action Research (CAR) approach implemented in two cycles. Each cycle consisted of planning, action implementation, observation, and reflection. The subjects were 30 11th-grade students. Data collection techniques included observation, interviews, documentation, and learning outcome tests. Data analysis was conducted using descriptive quantitative and qualitative methods. The results showed an increase in student learning activity, from moderately active in cycle I to very active in cycle II. The average student learning outcome score also increased from 70.3 in cycle I to 84.1 in cycle II, with classical mastery reaching 90%. Thus, the application of the Problem-Based Learning model has been proven to improve student activity and learning outcomes in the PPL program at SMAN 17 Merangin.
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