THE COMPARISON OF STUDENTS' MATHEMATICAL PROBLEM SOLVING ABILITY BY USING COOPERATIVE LEARNING MODEL THINK TALK WRITE AND THINK PAIR SHARE TYPE IN SMP PAHLAWAN NASIONAL MEDAN GRADE VII IN INTEGERS MATTER A.Y 2018/2019

The aim of this research is to know whether student’s Mathematics Problem Solving Ability by using cooperative learning model TTW type is higher than cooperative learning model TPS type for Grade VII in SMP Pahlawan Nasional Medan at Academic Year 2018/2019. The population is all students of grade VII in SMP Pahlawan Nasional Medan. Sampling techniques that is used in this
research is random sampling. There are two samples in this research those are, Class I is VII 3 by using cooperative learning model TTW type and Class II is
VII 6 by using cooperative learning model TPS type. Each of class consist of 32 students. Technique of analyzing data is consisted of normality, homogeneity, and
hypothesis test. Based on normality and homogeneity test, the data was taken from normal distribution and homogeneous population. Hypothesis test is done by
using analysis of t-test. The result of t-test show that tcalculated = 2.4882 and t(0.5)(62) = 1.9989. Consequently tcalculated > ttable, then H0 is rejected. So, we can conclude that students’ mathematical problem solving ability by using cooperative learning model TTW type is higher than cooperative learning model TPS type.