This study was motivated by the low learning outcomes IPA fourth grade students of SD Negeri 16 Bandar Jaya, totaling 16 students with KKM 70 just 6 students, or 37.5% of the children who completed while 10 students or 62.5% were completed. According to this problem, the researchers have conducted research using Action Research (PTK) by applying Cooperative Learning Model two stay two stray. In…