Baso Intang Sappaile and Norma Nasir 2026. The Effectiveness of Metareflection-Based Problem-Based Learning on Students’ Mathematical Critical Thinking Skills. International Journal of Education, Vocational and Social Science . 5, 04 (Nov. 2026), 5066-5082. DOI:https://doi.org/10.63922/ijevss.v5i04.7249.