The problem in this research was mathematic learning outcomes in fourth grade students SDN 004 Pekanbaru still low with average value 60,1 with minimum completeness criteria (KKM 70).The purpose 0f this research was to improve mathematic learning outcomes 0f the fourth grade (IV) students SDN 88 Pekanbaru with the implementation of number head together (NHT) models. This research was classroom …