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This research is motivated by conditions in the field which indicate that worksheet circulating in elementary schools contains learning activities that do not encourage students' thinking abilities to solve various contextual problems and provide subjectivity experiences to develop their attitudes. Therefore, a research was carried out that aims to develop problem-based learning (PBL) model worksheet in force material to improve problem-solving skills, self-confidence, and responsibility of students. This research method uses ADDIE (Analyze, Design, Develop, Implement, Evaluate) development method. The validated worksheet was tried out limited to one class. Participants in the study were 33 fourth grade students in the elementary schools in Dayeuhkolot District, Bandung Regency Indonesia. The data was collected using test instruments, validation sheets, and observation sheets that had been tested by experts. Data analysis using N-Gain. Based on the research results, it can be concluded that the problem-based learning model worksheet the topics of force developed can improve problem solving skills, self-confidence, and responsibility of students. Keywords—worksheet, problem-based learning model, problemsolving skills, self-confidence, responsibility

Implementation of PBL Model to Improve Skills Problem Solving, Self-Confidence, and Responsibility