Kontribusi Kemampuan Koneksi, Kemampuan Representasi, Dan Disposisi Matematis Terhadap Prestasi Belajar Matematika Siswa SMA Swasta Di Kabupaten Manggarai

Abstract

This research aimed at investigating: 1) the contribution of mathematical connection ability toward mathematics achievement through mathematical disposition, 2) the contribution of mathematical representation ability toward mathematics achievement through mathematical disposition, 3) the contribution of mathematical connection and representation mathematical ability toward mathematical disposition simultaneously, and 4) the contribution of the connection ability, representation ability and mathematical disposition toward students\u27 mathematics achievement simultaneously. The research applied ex post facto design. The population of this research was second year students\u27 of science program of private senior high schools in Manggarai regency in the academic year 2012/2013. The total members of sample was 230 which chosen using cluster sampling technique. The data of the connection and representation mathematical abilities were gathered using essay test. The data of mathematical disposition were collected by questionnaire. The data of students\u27 mathematics achievement were collected by using students\u27 first semester score. The data were analyzed using Path Analysis. The result indicated that: 1) the contribution of mathematical connection ability toward students\u27 mathematics achievement through mathematical disposition is 19,36%, 2) the contribution of mathematical representation ability toward students\u27 mathematics achievement through mathematical disposition is 14,12%, 3) the contribution of mathematical connection and representation ability toward mathematical disposition is 83,7%, and 4) the contribution of connection ability, representation ability, and mathematical disposition toward students\u27 mathematics achievement is 81,3%. Based on these research findings, it was concluded that connection ability, representation ability, and mathematical dispositions contribute significantly to mathematics achievement of grade XI science students of Manggarai directly or indirectly. keyword : Key words: contribution, connection ability, representation ability, disposition mathematical, and mathematics achievemen