Problem Based Learning Model to Improve Students^ Mathematical Communication Skills: A Meta-analysis Study Nipa Susanti (1*), Dadang Juandi (1), Jarnawi Afgani Dahlan (1), Suparman (1)
1) Department of Mathematics Education, Universitas Pendidikan Indonesia, Jl. Setia Budhi No. 229, Bandung 40154, Indonesia
*nipasusanti[at]upi.edu
Abstract
The Problem-Based Learning model has been widely used as a way to improve mathematical communication skills, but meta-analysis research is rarely done. This meta-analysis study was conducted to examine the effect of using the PBL. By entering the predetermined keywords, it was obtained 31 articles that met the eligibility for further analysis. The method used in this research is meta-analysis, namely by analyzing the articles of research results that have been published both nationally and internationally. CMA software was used to analyze the data and calculate the effect size in this study, with the effect size being the Hedges-g equation. The random effects model was used in this study. After checking FSN value and calculating it, the value is more than 1, which means that the study in this study is prone to publication bias. The results of the calculation, obtained an effect size value of 0.763 (medium effect). so this finding indicates that the PBL model can be considered as a way to improve students^ communication skills. Based on the moderator variable, in sample size (Q=0.026- P>0.05), research year (Q=4.022- P>0.05), publication type (Q=0.031- P>0.05), education level (Q=3.665, P>0.05) and research area (Q=2.408, P>0.05). It can be concluded that the differences in study characteristics have no significant effect on students^ mathematical communication skills.
Keywords: Problem-Based Learning, Mathematical Communication skills, Meta-Analysis.
