Pengaruh Model Problem Based Learning Berbasis Realistic Mathematics Education Terhadap Kemampuan Berpikir Kritis Materi Pecahan Campuran Kelas V

Abstract

This study aimed to determine the effect of the Problem-Based Learning model based on Realistic Mathematics Education on students’ critical thinking skills in mixed fractions at SDN Tanggul Kulon 01. The background of this research was the low level of students’ critical thinking caused by abstract and teacher centered mathematics instruction. This study employed a quantitative approach using a quasi-experimental design with a non-equivalent control group. The participants were two fifth-grade classes: class VA as the experimental group taught using PBL based on RME, and class VB as the control group taught using conventional learning. Data were collected through pre-test and post-test measuring students’ critical thinking skills. The data were analyzed using a t-test. The results showed that the value of tcount = 5.93 was greater than ttable = 2.02 at a significance level of 0.05, indicating a significant difference between the two groups. Furthermore, the PBL-RME model contributed 58.8% to the improvement of students’ critical thinking skills. These findings indicate that PBL based on RME has a significant positive effect on students’ ability to analyze, understand, and solve mixed fraction problems. Therefore, this learning model is recommended as an effective alternative for improving the quality of mathematics learning in elementary schools.