<![CDATA[This quasi experimental design aimed to know the effectiveness cooperatif learning model of TGT (Teams Games Tournamens) by student’s mathematical communication ability. The design of this research was posttest only control group design. The population of this research was all eighth grade students of Junior High School State 22 Bandar Lampung in Academic Year 2012-2013. Sample of this research were VIIIB and VIIID that was determined by purposive sampling technique. The data research was quantitative data that was acquired by student’s mathematical communication ability test. Based on analysis data can be concluded that TGT’s model is effective considered by student’s mathematical communication ability, a case study on eighth grade students of Junior High School State 22 Bandar Lampung in Academic Year 2012-2013.Keywords: Effectiveness, TGT, Mathematical Communication Ability]]>
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