Prafnesia, N.L., Idrus, I. and Jumiarni, D. 2025. Design of Instructional Materials with the Cooperative Learning Model Numbered Heads Together (NHT) for Junior High School. Biological Sciences and Pedagogy Journal. 1, 1 (Nov. 2025), 16–25. DOI:https://doi.org/10.61142/biosped.v1i1.236.