摘要：The purpose of this research was to know the effectiveness of MURDER cooperative model towards students’ mathematics reasoning ability and self concept of ten grade. Population of this research were students of MIA ten grade Senior High School 1 Kebumen in the academic year 2016/1017. Sampling technique using simple random sampling technique. The data collected by the method of documentation,test methods,observation methods,and questionnaire methods. The analyzed of data are used completeness test and average different test. The results showed that: (1) mathematics reasoning ability of students that following MURDER cooperative model have completed individual and classical study completeness; (2) mathematics reasoning ability of students that following MURDER cooperative model better than mathematics reasoning ability of students that following ekspository learning; (3) self concept of students that following MURDER cooperative model better than self concept of students that following ekspository learning.
其他摘要：Penelitian ini bertujuan untuk mengetahui keefektifan model pembelajaran kooperatif MURDER terhadap kemampuan penalaran matematis dan self concept siswa kelas X. Populasi penelitian ini adalah siswa kelas X MIA SMA Negeri 1 Kebumen tahun pelajaran 2016/2017. Teknik pengambilan sampel menggunakan teknik simple random sampling. Metode pengumpulan data menggunakan metode dokumentasi,tes,observasi,dan angket. Analisis data yang digunakan adalah uji ketuntasan dan uji beda rata-rata. Hasil peenelitian menunjukkan bahwa: (1) kemampuan penalaran matematis siswa yang mengikuti pembelajaran dengan model pembelajaran kooperatif MURDER telah mencapai ketuntasan belajar individual dan klasikal; (2) kemampuan penalaran matematis siswa yang mengikuti pembelajaran dengan model pembelajaran kooperatif MURDER lebih baik daripada siswa yang mengikuti pembelajaran ekspositori; (3) self concept siswa yang mengikuti pembelajaran dengan model pembelajaran kooperatif MURDER lebih baik daripada self concept siswa yang mengikuti pembelajaran ekspositori.
其他关键词：Keefektifan; MURDER; Kemampuan Penalaran Matematis; Self Concept
