THEDIFFERENCEOFSTUDENTS’MATHEMATICALCOMMUNICATION ABILITY BY USING COOPERATIVE LEARNING MODEL TYPE TEAMS GAMES TOURNAMENT AND STUDENT TEAMS ACHIEVEMENT DIVISION IN SEVENTH GRADER SMPNEGERI2PORSEAACADEMICYEAR2014/2015

The aim of this research is to know whether student’s mathematical
communication ability in writing using cooperative learning model TGT type is
higher than cooperative learning model STAD type. The research method is quasi
experiment. The population is all students at class VII SMP Negeri 2 Porsea with
two sample classes which taking by cluster random sampling and consist of 23
students for each classes.
This research using posttest only. The data collected from posttest was
analyzed using descriptive statistic analysis and show all of data are normal
distribution and homogeneous.
There are eight questions in posttest that has valid. The result of the
research shows that the means score are 22.89 in experiment class I and 20.11 in
experiment class II. The posttest score descriptively show the students’
mathematical communication ability by using cooperative learning model type
TGT higher than cooperative learning model type STAD. Indicate in hypothesis
using posttest data obtained that tcalculated > ttable = 2.272 > 1.680 with  = 0.05, so
Ha is accepted. The mathematics teacher of SMP Negeri 2 Porsea suggested can
use cooperative learning model type TGT as learning model alternative in
improving students’ mathematical communication.