<![CDATA[This study aims to analyze the effect of the application of cooperative learning model in biology learning as a whole and based on the category of education level, dependent variable and cooperative type according to Robert E. Slavin. The method used is quantitative with a meta-analysis technique on 50 experimental research results (pretest-posttest) published on Google Scholar. Based on the results of Cohens'd analysis, the overall value of the influence is 0.44 which is included in the medium effect. Meanwhile, based on education level, it showed a moderate effect with a greater influence at the senior high school level (d equal to 0.47) than in junior high school (d equal to 0.35). Meanwhile, the dependent variable has almost the same combined effect value in the medium effect category, namely learning outcomes and concept understanding (d equal to 0.44) as well as metacognitive knowledge and critical thinking skills (d equal to 0.43). The value of the magnitude of the effect reviewed based on the cooperative type showed a better effect for the STL type (d equal to 0.55) with a large effect than the SCL type (d equal to 0.44) and the informal method type (d equal to 0.41) with a moderate effect. This shows that the overall cooperative learning model has a good influence on student learning outcomes, so that it can be used as an alternative learning model that is effectively applied in biology learning.]]>
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