The aim of this research is to know the difference of learning result of student's mathematics with learning model of elaboration and model of learning type Student Teams Achievement Division (STAD). This research is quantitative research, with research type quasi experiment. The population is all students of IX class MTs Amaliyah Tanjung Tiga Academic Year 2016/2017  the number of the students 140 . The sample in this study were 30 students in the class IX-A and 30 students in the class IX-B. Data analysis was doing by variance analysis (ANAVA). Result  finding showed : 1) the amount results of learning of student mathematicstaught by using elaboration learning model with an average value of 70.17 and has a variance value of 216.28. 2) the amount results of learning of student mathematicstaught by Student Teams Achievemnt Division (STAD) learning model with an average score of 60.33 and a variance value of 158.92. 3) there are differences of students' mathematics learning result taught with elaboration learning model and learning model of type Student Teams Achievement Division (STAD) with Fcount> F(table) that is equal to F(count) = 5,936 and Ftable = 4,007. The conclusion of this research showed that the result of learning of student mathematics taught by using elaboration learning model is better than using model of learning type Student Teams Achievement Division (STAD).