CERVEZA, Nolie Jr. The Effectiveness of Design Thinking-Based Instruction on the Problem-Solving Skills and Mathematics Achievement of Grade 10 Students. Philippine Journal of Basic Studies, [S. l.], v. 2, 2026. Disponível em: https://pjbs.pti.edu.ph/index.php/pjbs/article/view/29. Acesso em: 1 aug. 2026.