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All Journal Numeracy : Jurnal Ilmiah Pendidikan Matematika JURNAL MATHEMATIC PAEDAGOGIC Best Journal (Biology Education, Sains and Technology) Jurnal Fibonaci: Jurnal Pendidikan Matematika Jurnal Pengabdian Masyarakat Bhinneka Cakrawala International Journal of Multidisciplinary Sciences and Arts
asriati, weni widya
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Public Health

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Journal : International Journal of Multidisciplinary Sciences and Arts

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Enhancing Mathematical Critical Thinking through Problem-Based Learning: A Case Study at SMP Pangeran Antasari Anta, Rizky; Asriati, Weni Widya; Julia, Nur Tri
International Journal of Multidisciplinary Sciences and Arts Vol. 4 No. 3 (2025): International Journal of Multidisciplinary Sciences and Arts, Article July 2025
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ijmdsa.v4i3.6904

Abstract

This study aims to analyze the effect of Problem-Based Learning (PBL) on students’ mathematical critical thinking skills in solving Systems of Linear Equations in Two Variables (SPLDV). A qualitative descriptive approach was employed with 30 grade VIII students at SMP Pangeran Antasari as research subjects. Data were collected through tests, observations, interviews, and documentation, with instrument reliability confirmed using Cronbach’s Alpha (0.627). The findings show that 80% of students successfully identified problems, 75% provided logical reasoning, 70% connected mathematical concepts with real-life contexts, 85% applied appropriate solution strategies, and 78% drew valid conclusions. Nevertheless, around 20% of students demonstrated only moderate performance, and 10% showed significant difficulties in reasoning and inference. These results confirm that PBL enhances student engagement, collaborative learning, and higher-order thinking, while also highlighting the need for scaffolding to strengthen reasoning and inferencing skills. This research contributes empirical evidence supporting the application of PBL in mathematics classrooms and reinforces its alignment with constructivist learning theories and 21st-century skill development.
Co-Authors Amelia, Nina Anta, Rizky Aritonang, Vicky Robianto Br. Sinaga, Rachel Cantika, Amelya Danis, Amir Febriani, Vadyah Ayu Fikri Fikri Jayanti, Agus Julia, Nur Tri Khairunisa, Citra Marissayu, Marissayu Marthin, Marthin Putri Pratiwi Rambe, Imelda Wardani Rambe, Rohimah Sarumaha, Junianto Siboro, Leo Chandra Sihombing, Putri Sion Unilika Tesi Kumala Sari, Tesi Kumala Tesi Kumalasari Umi Kalsum