Ikeh, F. E.; Eke, C. C.; Eze, F. B.; Nwoye, M. N.; Kalu, I. A.; Okeke, N. I.; Nji, I. A.; Obem, S. E.; Anakpua, B. C.; Ugwu, K. C. EFFICACY OF DIGITAL VIDEO INSTRUCTIONAL STRATEGY ON SECONDARY SCHOOL STUDENTS’ ACADEMIC ACHIEVEMENT IN MATHEMATICS: IMPLICATION FOR CURRICULUM SPECIALIST AND EDUCATIONAL EVALUATORS. Ver. Dir. 2026, 23, e235383.