This research is motivated by the lack of student learning discipline in participating in learning such as students arriving late to school, being late in collecting assignments, not paying attention when the teacher explains the subject matter. The purpose of this study was to determine and describe the significant influence between learning discipline and mathematics learning outcomes. This study uses a quantitative approach with a correlational method. The population in this study were all students of class XI SMA Negeri 17 Merangin which consisted of 2 classes with a total of 41 students. The sampling technique in this research is total sampling where the entire population is used as the research sample. Data collection techniques in this study were questionnaires and tests. The instrument used is in the form of statement items and learning outcomes test items. The analytical technique used to test the hypothesis is Product Moment Correlation. for the significance test using the Z-test, followed by the determinant coefficient formula to state the size of the contribution of the X variable to the Y variable. Then, a simple linear regression test and a regression significance test were carried out. Based on the results of data analysis, it shows that Fcount > Ftable or 6,718 > 2.108, then H0 is rejected and H1 is accepted, meaning that there is a significant influence between learning discipline on mathematics learning outcomes for class XI students of SMA Negeri 17 Merangin for the 2020/2021 academic year, with a contribution of 14, 67%.
                        
                        
                        
                        
                            
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