Research in the Mathematical and Natural Sciences
Vol. 5 No. 2 (2026): May-October 2026

Improving Mathematics Learning Outcomes in Systems of Linear Equations in Two Variables Using the Problem-Based Learning Model

Rahmat Rahmat (Department of Mathematics Education, Universitas Negeri Gorontalo, Bone Bolango 96554, Indonesia)
Ismail Djakaria (Department of Statistics, Universitas Negeri Gorontalo, Bone Bolango 96554, Indonesia)
Novianita Achmad (Department of Mathematics, Universitas Negeri Gorontalo, Bone Bolango 96554, Indonesia)



Article Info

Publish Date
31 Jul 2026

Abstract

This study aims to improve students' mathematics learning outcomes on Systems of Linear Equations in Two Variables (SLETV) through the implementation of the Problem-Based Learning (PBL) model. This type of research is Classroom Action Research (CAR) conducted at SMP Negeri 1 Suwawa during the even semester of the 2024/2025 academic year, with 31 eighth-grade students (class VIII-B) as subjects. The research took place in a single cycle consisting of four meetings (three learning process meetings and one final test meeting). The instruments used included Lesson Plans, Student Worksheets, observation sheets for teacher and student activities, and learning achievement tests. Observation results indicated that the percentage of teacher activity in the "good" and "very good" categories increased from 63.6% in Meeting 1 to 90.9% in Meeting 3, with an overall average of 75.7%. The percentage of student activity in the "good" and "very good" categories increased from 59.1% in Meeting 1 to 90.9% in Meeting 3, with an overall average of 77.2%. Learning test results showed that among the 25 students who took the evaluation, 19 students achieved mastery (76%), thereby meeting the established classical success indicator (>= 75%). Thus, the application of the PBL model is effective in improving students' mathematics learning outcomes on SLETV.

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Journal Info

Abbrev

rmns

Publisher

Subject

Computer Science & IT Education Mathematics

Description

Research in the Mathematical and Natural Sciences (RiMaNs) is a national journal intended as a communication forum for mathematicians and other scientists from many practitioners who use mathematics in their research. RiMaNs disseminate new research results in all areas of mathematics and their ...