Effect of Polya’s Problem-Solving Model on performance in Respiration Concept among Secondary School Students in Zamfara State, Nigeria. Federal University Gusau Faculty of Education Journal, [S. l.], v. 5, n. 3, p. 273–279, 2025. DOI: 10.64348/zije.202567. Disponível em: https://js.foefugusau.com.ng/index.php/foefujs/article/view/67. Acesso em: 2 mar. 2026.