A Sequential Explanatory Mixed Methods Analysis of the Instructional Supervision Practices of Subject Group Heads

Abstract : Instructional supervision is one critical factor in education that influences teachers’ quality practices and enhances students’ learning in senior high schools. This study used an explanatory sequential mixed methods approach to assess the instructional supervision practices of Subject Group Heads (SGHs). This study involved 13 SGHs and 63 teachers who responded to structured questionnaires that measured the quality of supervision in terms of checking lesson plans and teaching materials, classroom observations, and providing technical support. Weighted averages show that SGHs engaged in supervision practices and teachers had comparable views. Analysis of the differences between SGHs and teachers found no statistical significance, suggesting congruence in their understanding of supervision practices. The thematic analysis revealed barriers such as inadequate lesson plans, lack of teacher readiness, weak observation checklists, teacher reluctance to receive feedback, and lack of resources. Combining quantitative and qualitative results revealed that although instructional supervision generally occurred, it was inconsistent and insufficient for development due to challenges. The research concludes that instructional supervision needs to be enhanced through systematic, evidence-based, and developmental methods. Further research may be conducted with more schools to monitor and evaluate the implementation, usefulness, and effectiveness of the SUSTAIN-Based Technical Assistance Handbook in addressing supervision gaps and improving teachers’ instructional performance.