Erif Ahdhianto, Marsigit, Haryanto, Yogi Nurfauzi
Although students' problem-solving and critical thinking skills have been set as the main goal of the mathematics subject, the results tend to be unsatisfactory. This study aims to improve students' mathematical problem-solving and critical thinking skills using problem-based learning (PBL). A quasi-experimental design was utilized in this study which involved 78 (31 males and 47 females) fifth-grade students as the sample. The students were divided into two groups, namely the experimental group (n = 39) and the control group (n = 39). This study was conducted in an Indonesian elementary school in its first semester of the 2019/2020 school year. The Problem-Solving Skills Test (PSST) and Critical Thinking Skills Test (CTST) were administered to obtain the data. One-Way MANOVA and ANOVA tests were used to analyze the data at a significance level of .05. The results showed that students in the experimental group had higher post-test scores compared to the control group in terms of mathematical problem-solving and critical thinking skills. Thus, it can be concluded that PBL effectively promoted fifth-grade students' problem-solving and critical thinking skills. © 2020 by authors, all rights reserved. Authors agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.
Department of Educational Sciences, Yogyakarta State University, Indonesia; Department of Primary School Teacher Education, Universitas Nusantara PGRI Kediri, Indonesia; Graduate School, Yogyakarta State University, Indonesia; Department of Economic Education, Faculty of High School Teacher Training and Education, Stkip Majenang, Indonesia
