The purpose of this research was would know if there are effect mathematics connection ability and disposition to mathematics achievement student class XI SMA Negeri 2 Balikpapan in the Academic Year of 2017/2018. The research used in this study is quantitative and the type of ex-post facto research. The research sampling technique uses cluster random sampling. https://www.roneverhart.com/LiftMaster-STAR1000-Commercial-Access-Control-Receiver/