Asian Journal of Education and Social Studies

Effective instructional supervision is important for supporting teaching practice, yet its implementation in rural public schools may be constrained by institutional and logistical challenges. This study examined the challenges facing the implementation of effective instructional supervision in public schools under Mvomero District Council, Tanzania. Guided by Developmental Supervisory Theory, the research adopted a pragmatist philosophy, a mixed-methods approach and a convergent design, involving 325 students, 79 teachers and 10 heads of schools selected through simple random and purposive sampling. Data were collected using questionnaires, interviews and focus group discussions and analysed using SPSS, with instrument reliability indicated by a Cronbach’s alpha of 0.82. The findings revealed that instructional supervision was hindered by erratic supervisory practices, resource shortages, excessive administrative workloads and inadequate training of supervisors, which collectively eroded teacher confidence, undermined classroom innovation and limited the developmental impact on instructional delivery. The study further highlighted tensions between teacher autonomy and accountability, alongside punitive supervisory techniques that reduced motivation and professional growth. These challenges were associated with poor learning outcomes, low academic achievement and weakened literacy and numeracy skills among students. The study recommends the provision of transport allowances, continuous professional development for supervisors and the adoption of mentoring-oriented supervisory practices to transform inspection into developmental support. The results provide insights for policymakers, school leaders and local communities seeking to strengthen decentralised supervision and improve instructional quality in rural Tanzanian schools.