This research aims to know the influence of the effect of cooperative learning model number head together (nht) on the economic learning outcomes of XI IPS class students of SMAN 2 Siak Hulu. This research was conducted at SMAN 2 Siak Hulu 2018/2019 academic year. The research used was the quasi exspremental approach. Sampling using multystage method. The research sample was 61 students. For th…