EFFORTS TO IMPROVE MATHEMATICAL COMMUNICATION SKILLS BY USING A COOPERATIVE LEARNING MODEL TYPE THINK TALK WRITE STUDENTS GRADE VIII

Abstract

field, students still find it difficult to write symbols or symbols of mathematics, describe problems given in the form of drawings/charts/tables, and turn real problems into the language of mathematics, have not written the conclusions obtained at the end of the problem-solving. The purpose of this study is to improve students' written mathematical communication skills in flat-sided space building materials with a Cooperative Learning Model of Think Talk Write (TTW). The study results using a cooperative learning model type TTW obtained improved mathematical communication skills written on each indicator, i.e., students' ability to express and illustrate problem solutions in the form of images from cycle I amounted to rise to cycle II. The percentage of students' ability to formulate the concept of solving mathematics from problems given by cycle I amount to rise to in cycle II. The percentage of students' ability to express and illustrate problems in mathematical equations in cycle I amount to , rise to in cycle II. The percentage of students' ability to use the language of mathematics and symbols precisely to solve given from cycle I amount to  rise to cycle II. The percentage of students' ability to explain the solving measures in writing and provide conclusions of the problems obtained from the cyclical I amounted to rise to cycle II.