OCHIGBO ADEBU CHARITY and OMAJI REGINA 2025. EFFECT OF ACTIVITY-BASED LEARNING ON BASIC SCIENCE STUDENTS’ COGNITIVE SKILLS IN UPPER BASIC LEVEL IN MAKURDI, BENUE STATE, NIGERIA. International Journal of Educational Research and Library Science. 8, 8 (Jun. 2025). DOI:https://doi.org/10.70382/tijerls.v08i8.043.