<![CDATA[This study aims at determining the relationship between school atmosphere and teacher performance, achievement motivation with teacher performance and work commitment to teacher performance in the Mulia Pratama Private Senior High School Medan City for the 2019/2020 academic year. This research was started in early December 2019 until July 2020. The population in this study is as many as 30 teachers of SMA Mulia Pratama, with teacher respondents and all of them are used as research samples. Data were collected by using a questionnaire technique for each variable, namely X1, X2, X3 and Y as the dependent variable. Data were analyzed by using product moment correlation and multiple regression correlation analysis with the approach used, namely the quantitative approach. From the results of the research analysis it can be concluded that (1) the school atmosphere variable has a significant relationship and has a positive correlation and a moderate relationship of 0.423 or 42.3% with teacher performance, (2) the achievement motivation variable has a significant relationship and has a significant relationship. positive correlation and low relationship 0.378 or 37.8% with teacher performance, (3) work commitment variable has a significant relationship and has a positive correlation and a strong relationship of 0.783 or 78.3% with teacher performance, (4) variable school climate, achievement motivation and work commitment have a significant relationship and have a positive correlation and a very strong relationship of 0.822 or 82.20% with teacher performance.]]>
