The study aimed to evaluate the role of teachers in implementing activity-based curriculum, which is essential for successful education. A qualitative approach was used to collect data from a sample of five public school teachers in the Sahiwal district, through semi-structured interviews and thematic analysis. The findings revealed that teachers' ability to apply essential teaching skills is critical for successful activity-based teaching. However, the study identified several barriers to effective implementation, including inadequate training, poor planning, teacher stagnation, limited resources, lengthy course content, and overcrowded classrooms. The study recommends that teachers should receive proper training to master the necessary skills for activity-based teaching, and mechanisms should be established to monitor and evaluate their practices. Additionally, guidebooks should be prohibited, class sizes should be limited to 30 students, and special funding should be allocated to support activity-based curriculum. Adequate teacher training from institutions is necessary for the successful implementation of this curriculum.