This research study investigated the impact of School Management Team (SMT) practices on students' academic performance in Tanzania. Focusing on various practices employed by school management teams, the study analyzed their correlation with students' academic achievements. Utilizing a mixed-methods approach, it combined quantitative data analysis with qualitative interviews involving heads of schools, teachers, and students. Key factors examined included analyzing academic data, monitoring students' progress, and enhancing teachers’ up-skilling, coordinating supportive services and creating a supportive network with other stakeholders to enhance students' academic performance. Data was gathered from six secondary schools in Mbeya City Council to ensure a 374-representative view of management practices. The findings revealed that SMTs are crucial in enhancing students' academic outcomes in Tanzania. These results contribute to the existing literature on educational management and offer insights for policymakers, educators, and school administrators on effective practices to improve student performance within the Tanzanian education system