Instructional Leadership for Curriculum Innovation and 21st-Century Competencies at Selected Secondary Schools in Ohangwena Region, Namibia

Namibia’s curriculum reforms emphasise critical thinking, creativity, collaboration, communication and digital literacy, yet their implementation remains challenging in resource-constrained secondary schools. This study examined instructional leadership practices, challenges and strategies for advancing curriculum innovation and 21st-century competencies in selected secondary schools in the Ohangwena Region, Namibia. Informed by instructional and distributed leadership perspectives, the study adopted a pragmatic philosophy and convergent parallel mixed-methods design. All 60 Heads of Department (HoDs) completed a questionnaire, representing the entire defined population. Three focus group discussions involved 30 purposively selected HoDs with at least five years of leadership experience. Quantitative data were analysed using frequencies, percentages, means and standard deviations, while qualitative accounts underwent thematic analysis. Collaborative departmental planning (85.0%; M = 4.20), classroom observation and feedback (81.7%; M = 4.10) and professional development (80.0%; M = 4.12) received the strongest endorsement. Digital integration received comparatively less support (63.3%; M = 3.60). Major constraints included heavy teaching workloads (88.3%), inadequate resources (86.7%), limited supervisory time (83.3%) and weak ICT infrastructure (81.7%). Focus group accounts emphasised collaborative planning, supportive supervision and continued professional learning, while identifying examination pressure and inadequate digital access as further challenges. The findings suggest that HoDs facilitate curriculum innovation through shared professional practices, but their influence is bounded by organisational and material constraints. The study recommends protected supervisory time, sustained school-based professional development, strengthened departmental collaboration and equitable digital investment. These measures should be evaluated through classroom-based evidence of curriculum enactment and learner competencies in comparable resource-constrained schools across Namibia’s regions.