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Abstract
The purpose of this study was to determine how much the increase in student learning outcomes in the learning process using the Jigsaw method in natural science subjects in grade VIII at SMP Negeri 221 Jakarta. This research is a type of classroom action research with the research subjects of class VIII A SMP Negeri 221 Tanjung Priok, North Jakarta, and the object is the improvement of student learning outcomes using the Jigsaw method. The action taken in this study was to apply the Jigsaw method during the learning process, students were divided into several discussion groups in which there was a team of experts in presenting the results of the discussion in front of the class. This research was conducted in 3 cycles on natural science subjects. The research data is in the form of student learning outcomes instruments. The technique of collecting data on student learning outcomes by direct observation by 3 observers. Data were analyzed descriptively using percentages, the implementation of the Jigsaw method can improve student learning outcomes. In the first cycle the average learning outcomes of 66.56 in the second cycle increased significantly, reaching an average value of 73.75, reinforced by in the third cycle an increase in the average score to 78.13, from the results of these studies it can be concluded that there is an increase in learning outcomes Science on Vibration and Wave material for class VIII A SMP Negeri 221 Jakata with the Jigsaw method learning.