EFEKTIVITAS PENERAPAN MODEL PEMBELAJARAN TWO STAY TWO STRAY TERHADAP PEMAHAMAN KONSEP MATEMATIS SISWA

This quasi experimental research aim to know the effectiveness of cooperative learning model two stay two stray type toward student’s mathematical concept understanding. This research design is post-test only control design. Population in this research is students of 8th grade in SMP Negeri 3 Tulang Bawang Tengah 2012/2013 year. The sample of this research is students of 8A and 8B class which is taken by using purposive sampling technique. Data research is obtained from student’s mathematical conceptual understanding test. The conclusion show that cooperative learning model TSTS type is effective for student’s mathematical concept understanding.Keywords:Effectiveness, Cooperative Learning, Two Stay Two Stray, Mathematical Concept Understandin