Caramay, C.S. e Ortega-Dela Cruz, R.A. 2023. PROBLEM-BASED LEARNING AND ITS EFFECTS ON ACHIEVEMENT AND ATTITUDE IN SCIENCE AMONG GRADE 8 STUDENTS. Investigações em Ensino de Ciências. 28, 1 (maio 2023), 97–110. DOI:https://doi.org/10.22600/1518-8795.ienci2023v28n1p97.