Improving Mathematical Communication Skills Through PBL Class III A Elementary School Students

Abstract

One of the skills needed in the 21st century is being able to solve problems that can be done through mathematical communication skills, especially in mathematics. The purpose of this study was to improve the mathematical communication skills of class III A students through the Problem Based Learning (PLB) model about types of angles. The PBL model is able to create fun and meaningful learning for students in solving problems. This research is a Collaborative Classroom Action Research (PTKK) which was carried out in two cycles with 4 meetings. Each meeting consists of planning, implementing, observing, and reflecting. The subjects of this study were 19 students in class III A. Data collection techniques using tests and non-tests in the form of observation. Data analysis was carried out through qualitative and quantitative descriptive to calculate the test results. The results of this study indicate that the use of the Problem Based Learning model can improve students' mathematical communication skills as evidenced by the increase in the average mastery of the results of students' mathematical communication abilities in cycle I, namely 76.35% and cycle II, 86.85%, an increase of 13.5%. and has reached the target of 80%.