<![CDATA[This study aims to examine and analyze the influence of discipline, teamwork, and communication on teacher performance at SMP Negeri 1 Percut Sei Tuan, both partially and simultaneously. The research uses a quantitative approach with an associative method. The population consists of all 50 teachers at the school, and saturated sampling is employed so that the entire population serves as the sample. Data were collected through a Likert-scale questionnaire and analyzed using multiple linear regression with SPSS version 27. The t-test results show that discipline has a positive and significant effect on teacher performance (t = 8.461; sig. = 0.001) and teamwork has a positive and significant effect on teacher performance (t = 5.316; sig. = 0.001). Communication does not have a significant effect on teacher performance (t = −0.822; sig. = 0.416). Simultaneously, the three variables have a significant effect on teacher performance (F = 34.524; sig. = 0.000). The Adjusted R Square value of 0.672 indicates that the model explains 67.2% of the variation in teacher performance, while the remaining 32.8% is explained by other variables outside the study. The findings confirm that teacher performance is accounted for more by discipline and teamwork, whereas existing communication practices do not explain differences in performance. The results are expected to inform the school in improving teacher performance through discipline development, stronger collaboration, and better work communication.]]>
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