The purpose of this study is to provide an overview of the implementation of classroom action regarding teacher's activity, student's activity, and student's learning outcomes with matters of the Joint Decision using a combination model of Mind Mapping, Think Pair Share, and Teams Game Tournament. This study used a qualitative research approach with a type of Classroom Action Research (CAR) carried out in four cycles. The Classroom Action Research subjects were 18 students of the fifth grade of SDN Pelambuan 7. The data collected by using observation and tests. It was analyzed qualitatively and quantitatively. The results of this study indicate that teacher activity is improving and student activity as well as learning outcomes are increasing. Based on the results of this study, it can be concluded that using a combination model of Mind Mapping, Think Pair Share, and Teams Game Tournament models can improve teacher activity and increase student activity and learning outcomes.