Design and validation of a technology-enhanced inquiry-based learning package for junior secondary natural science in resource-constrained contexts

This study designed and validated a Technology-Enhanced Inquiry-Based Learning Package (TIBLEP) for junior secondary natural science in a resource-constrained context, addressing the offline connectivity barriers common in under-resourced schools. A Design and Development Research (DDR) approach guided needs analysis, design, development, expert validation, revision, and field implementation. TIBLEP was built as an offline environment combining curriculum-aligned content, guided inquiry, multimedia demonstrations, self-paced navigation, and formative feedback. Five experts assessed the package across six dimensions. Sixty Grade 8 students from two intact classes then completed a five-week field trial (30 in the TIBLEP group and 30 in the conventional group), with interviews capturing participant experiences. Expert ratings were consistently positive (grand mean = 3.69, SD = 0.29), with the highest ratings for overall suitability (M = 3.78) and the lowest for technology integration (M = 3.60). Posttest achievement was higher for TIBLEP (M = 68.30, SD = 6.20) than for the control group (M = 54.70, SD = 5.80). Interviews indicated perceived gains in conceptual clarity, autonomy, engagement, collaboration, and teachers' technological competence. TIBLEP is a feasible, expert-validated offline model for inquiry-oriented science learning where connectivity is unreliable and access remains uneven. The package offers teachers and policymakers a validated, curriculum-aligned tool for delivering inquiry-based science instruction without depending on internet access.