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Abstract

This research was aimed to determine the improvement of the result of critical thinking skills and student learning outcomes when applied Problem Based Learning model on Theme 7 Energy and It’s Changes. This research is a Classroom Action Research which carried out 3 cycles and each cycle was held as many as 2 times meeting. The subjects of this study are the grade students, consisting of 9 male students and 12 female students SDI Klojen Kidul in the second semester of the academic year 2017/2018. Data from this research were obtained from tests, observations, and field notes. The results of this research dicate an increase in critical thinking ability from 63.49% in the cycleI to 76.98% in cycle II and increased to 84.12% in cycles III. Attitude learning outcames increased from 47,62% in cycle I to 85,71%, in cycle II and at cycle III 95,23%. Knowledge learning outcames increased during learning three cycles, in cycle I 47,62%, at cycle II 76, 19%, and at cycle III 80,95%. Skill learning outcame have a significant improvement in cycle II. In the first cycle of 52.38%, cycle II 95.21%, and cycle III 76.19%.

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