APPLICATION OF COOPERATIVE LEARNING MODEL WITH TYPE OF TWO STAY TWO STRAY TO IMPROVE RESULTS OF MATHEMATICS TEACHING

The purpose of the research to improve learning outcomes mathematics junior high school students on the material Tangent Circles by applying cooperative learning model Two Stay TwoStray.This research is a classroom action research(actionresearch)were adopted from the model Kurt Lewin. The subject of this research is the students of class VIII SMP Muhammadiyah 57 Terrain totaling 38 students, consisting of 23 male students and 15 female students and the object of the study is the result of students' mathematics learning by implementing cooperative learning model Two Stay Two Stray.The findings in this study show the students experienced some difficulty in resolving the matter, but with the implementation of cooperative learning model Two Stay Two Stray be easier for students in the learning process because students can share information, thus increasing the results of students' mathematics learning with the percentage of first cycle obtained 52 , 63% and 86.84% in the second cycle.