Effects of Problem-Based Learning on Junior Secondary II Students’ Achievement in Algebra in Bauchi Metropolis. Fulafia Journal of Science Education, [S. l.], v. 3, n. 1, p. 130–138, 2026. Disponível em: https://fuljosed.com.ng/index.php/fuljosed/article/view/13. Acesso em: 14 aug. 2026.