Abstract
The purpose of this research was to knowing the effectiveness of LKS Human Respiratory System Based on Learning cycle (5E) on student’s cognitive. This research was an advanced Research and Development (R&D) on the stage of large-scale trails that organized in three schools. The research design that used for large-scale experiments was by the design of quasi experiments control group pretest and posttest. The population in this study were all students of class the XI in SMAN 84 Jakarta, SMAN 95 Jakarta, and SMAN 2 Kota Serang. Sample in this research is class XI IPA students as much as one class as the control class, and one class as the experiment class in each school. The sampling is taken by using simple random sampling technique. The data accumulation technique used objective tests sheest. Data analysis technique using t-test for testing the hypothesis on learning outcomes (cognitiver). The results of this research show that Student Learning Sheet (LKS) based on learning cycle (5E) The Human Respiratory System Material is effectively used as a teaching material for the students' cognitive in learning the human respiratory system in high school students of class XI.
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