This study examines the role of principal leadership in supporting the performance of Driving Teachers in implementing the Independent Curriculum at SMP Negeri Unggul Sigli. Using a qualitative case study approach, data were collected through interviews, observations, and documentation involving principals, Driving Teachers, non-Driving Teachers, and students. The findings reveal that principals adopt a transformational leadership style by providing motivation, mentoring, and learning facilities, enhancing teacher performance in project-based learning, collaboration, and technology use. Principals also foster a collaborative school culture, strengthening curriculum implementation. Challenges include limited understanding among non-Driving Teachers, time constraints, and budget limitations. The study highlights the need for training, resource optimization, and effective leadership to ensure sustainable curriculum implementation.
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