Abstract: This study aims to improve the learning process and improve the mathematics learning outcomes of Class VII.G students of SMPN 1 Siak Hulu in the 2018/2019 academic year through the application of the STAD type cooperative learning model. This research was motivated by the percentage of students who reached the KKM which was 28.12%, namely 9 out of 32 students, it was seen that 71…