Pengaruh Model Pembelajaran Kooperatif Tipe Teams-games-tournaments (TGT) Terhadap Kemampuan Komunikasi Matematis Peserta Didik Kelas VIII SMPN 1 Siak Hulu

This study aims to determine the effect of cooperative learning model TeamsGames-Tournaments (TGT) type on mathematical communication skills of VIII grade students of SMPN 1 Siak Hulu. This type of research is quasi-experiments (Quasi Experiments) which involves two classes, namely the experimental class and the control class by using the Nonequivalent Control Group Design. The population of this study was all VIII grade students of SMPN 1 Siak Hulu. The sampling technique of this study was purposive sampling. The sample in this study was class VIIIH as a control class with 32 students and class VIIII as an experimental class with 32 students. This research was conducted 6 times. The instruments of data collection are tests sheets and observation sheets. The test is used to see aspects of mathematical communication. The average mathematical communication skills of students increased, namely the experimental class = 76,75 and the control class = 63,38. Observation sheet was used to see the implementation of cooperative learning model Teams-Games-Tournaments (TGT) type in teacher and student activities. From the results of the t-test obtained > where = 3,601 and = 1,670. This means that is rejected and is accepted, so it can be concluded that there is an influence of cooperative learning model Teams-Games-Tournaments (TGT) type on the mathematical communication skills of class VIII students of SMPN 1 Siak Hulu