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All Journal Jurnal Penelitian Ilmu Pendidikan Indonesia International Journal of Contemporary Studies in Education
Auladina, Hafizah
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Humanities Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Analysis of Mathematical Critical Thinking Ability Junior High School Students on Systems of Linear Equations in Two Variables Material Fadilla, Jihan; Sari, Fitri Wulan; Auladina, Hafizah; Angraini, Lilis Marina; Bonyah, Ebenezer
International Journal of Contemporary Studies in Education Vol. 3 No. 3 (2024)
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56855/ijcse.v3i3.1021

Abstract

The aim of this research is to understand junior high school students' mathematical critical thinking abilities when facing SPLDV problems. The approach applied is a qualitative approach in the descriptive method. Subjects were selected using a purposive sampling technique and then 3 students were selected from 31 students in class VIII-5 of SMP N 1 Tualang. The test instrument used consists of three questions. Then students' responses were categorized into high, medium and low categories and analyzed these responses using indicators of critical thinking skills in the context of mathematics. Research findings show that students in class VIII-5 at SMP N 1 Tualang have critical mathematical thinking skills and are categorized as sufficient. This can be seen in the answers to test questions which do not cover several aspects of mathematical critical thinking skills. Mathematical critical thinking abilities were measured in three categories, high (9.68%), medium category (70.98%), and low category (19.36%).  
Pengaruh Model Problem Based Learning (PBL) Terhadap Kemampuan Pemecahan Masalah Matematis Peserta Didik kelas X SMA Negeri 1 Kabun Auladina, Hafizah; Effendi, Leo Adhar
Jurnal Penelitian Ilmu Pendidikan Indonesia Vol. 4 No. 4 (2025)
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpion.v4i4.743

Abstract

The mathematics learning process requires students to develop strong problem-solving skills. However, at SMA Negeri 1 Kabun, these skills remain low due to teacher-centered learning and limited activities that foster independent thinking. This study aims to examine the effect of the Problem-Based Learning (PBL) model on the mathematical problem-solving skills of grade X students at SMA Negeri 1 Kabun. The research employed a quasi-experimental method with a Nonequivalent Control Group Design. The population included all grade X students in the 2025/2026 academic year. Samples were selected using a purposive sampling technique, with 34 students from class Xa as the experimental group and 32 students from class Xc as the control group. Research instruments consisted of validated problem-solving test sheets and learning tools. Data were collected through both test and non-test techniques, and analyzed using descriptive and inferential statistical methods. The findings show significant differences in the average mathematical problem-solving abilities between students in the experimental and control groups after receiving different treatments. Results of the Independent Sample T-Test indicate a significance value (sig. 2-tailed) of 0.000, which is lower than α = 0.05 (0.000 < 0.05). Thus, the null hypothesis is rejected, and the alternative hypothesis is accepted. This suggests that the implementation of the Problem-Based Learning (PBL) model has a positive effect on improving the mathematical problem-solving skills of grade X students at SMA Negeri 1 Kabun
Co-Authors Bonyah, Ebenezer Effendi, Leo Adhar Fadilla, Jihan Fitri Wulan Sari Lilis Marina Angraini