MODEL PEMBELAJARAN KOOPERATIF GROUP INVESTIGATION DISERTAI LEMBAR KERJA LAPANGAN (LKL) DALAM PEMBELAJARAN FISIKA DI SMP
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This study concentrated of using cooperative model by group investigation type that completed by work sheet field in physics instruction. The purposes of this research are:(1) to study the influence of cooperative group investigation learning model with work sheet field to the students’ physics achievements in Junior High School, (2) to describe students’ learning activities during learning proces, and (3) to describe the retention physics students’ achievements after learning proces. This study is an experimental research by posttest-only control design. The techniques of data collection were observation, documentation, test and interview. Technique that used to analyze data is t-test and percentage. T-test is used for analyzing the influence of the model to physics achievements, percentage analyses is used for learning activities and retention. The results showed that the influence the model to the students’ physics achievements obtained p-value (1-tailed) 0.002 (0.002 0.05), students’ learning activities obtained 79,43% included in active criteria and the retention physics students’ achievements in the experiment class obtained 99,23% and in the control class obtained 97,18% so included a in very good criteria. Conclusions of this research are: (1) there is significantly influence of the model to the students’ physics achievements in Junior High School, (2) students’ learning activities during the model are included in active criteria, and (3) the retention of physics students’ achievements are included a in very good criteria. Although the retention of students’ physics achievements are same as criteria with control class, but the students’ achievements the experiment class is better than the control class.