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All Journal Jurnal Perspektif
Elmanani Simamora
Postgraduate Mathematics Education Study Program, Medan State University
Arts Economics, Econometrics & Finance Education Engineering Other

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Developing a Learning Tool Based on the Problem-Based Learning Model to Improve Students' Problem Solving and Collaboration Skills Dedi Irawan; Bornok Sinaga; Elmanani Simamora
Jurnal Perspektif Vol 10 No 1 (2026): Jurnal Perspektif
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jp.v10i1.458

Abstract

This study aims to create a learning aid product based on a realistic, practical, effective, and enhanced problem-based learning model to improve the problem-solving and teamwork abilities of eighth-grade students of SMP WR. Supratman 1 Medan. This research technique, developed by Thiagarajan and Semmel, is a learning aid known as the 4-D model (Define, Design, Develop, Disseminate). Class VIIIA students of SMP WR. Supratman 1 Medan in the 2025/2026 academic year became the subject of the study. Valid and practical problem-based learning aids based on the learning aid plan, Student Worksheets, Teacher's Books, and Student Books were found in this study. Students' mathematical problem-solving abilities increased after using problem-based learning on a system of linear equations with two variables, as shown by an average of 86% achievement in the posttest of experiment I and experiment II. Problem-based learning on a system of linear equations with two variables improved students' ability to collaborate mathematically, as evidenced by their average scores in experiments I and II.
Co-Authors Bornok Sinaga Dedi Irawan