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All Journal Edumatika JME (Journal of Mathematics Education)
Baharuddin Baharuddin
Universitas Tadulako
Computer Science & IT Education Mathematics

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PROFILE OF STORY PROBLEM SOLVING OF THE TANGENT LINE ON THE CIRCLE BY STUDENTS OF CLASS IX E SMPN 5 PALU Indriyani Indriyani; Muh. Hasbi; Anggraini Anggraini; Baharuddin Baharuddin
JME (Journal of Mathematics Education) Vol. 9 No. 1 (2024): JME
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v9i1.2128

Abstract

Completion of story problems by students needs to be profiled so that teachers can know the description or description of students' abilities in solving story problems. This study aims to obtain a profile of the completion of the circle tangent story problem by students of class IX E SMPN 5 Palu. This type of research is descriptive research with a qualitative approach. Data were collected through written tests and interviews. The results of this study showed that SH was able to do the problem correctly as the steps of solving the story problem. Then the results of EZ's solution show that there is an unfinished solution so that the answer obtained is wrong. Then the results of FR's completion showed that he was unable to solve the problem as the steps of solving the story problem so that the answer obtained was incorrect. Based on the results of this study, the researcher draws the conclusion that the profile of solving students' story problems varies based on students' mathematical abilities.
The Effect of Problem-Based Learning on Junior High School Students’ Mathematical Problem-Solving Ability: A Meta-Analysis Luluk Murniati; Muhammad Fachri B Paloloang; Baharuddin Baharuddin; Mubarik Mubarik
Edumatika Vol 9 No 1 (2026): May 2026, Edumatika : Jurnal Riset Pendidikan Matematika
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan IAIN Kerinci

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32939/ejrpm.v9i1.6823

Abstract

Background: Mathematical problem-solving ability remains a major challenge among junior high school students, while empirical studies on the effectiveness of Problem-Based Learning (PBL) have reported inconsistent findings. Purpose: This study aims to synthesize evidence of PBL effectiveness on junior high school students’ mathematical problem-solving ability. Method: Through meta-analysis following PRISMA procedures, 14 eligible studies published between 2016 and 2025 were identified, while 11 studies used for further analysis. Comprehensive Meta-Analysis (CMA) software was used to determine effect sizes, heterogeneity, publication bias, and moderator variables. Findings: The results showed that PBL has a medium effect size (g = 0.569; p < 0.001) with stronger effect in Grade VIII, topics requiring HOTS, and during the COVID-19 studies. Heterogeneity was moderate, while publication bias and sensitivity tests confirmed results’ robustness. Implications: These findings support the use of PBL in mathematics learning to enhance students’ mathematical problem-solving ability across diverse classroom settings. Originality: This study contributes a quantitative synthesis of PBL effectiveness and highlights factors influencing its impact on mathematical problem-solving ability.
Co-Authors Anggraini Indriyani Indriyani Luluk Murniati Mubarik Mubarik Muh Hasbi Muhammad Fachri B Paloloang