Elsalawaty2013-08-282013-08-282013-08-28Nofianti,S.Pdhttp://repository.unri.ac.id:80/handle/123456789/5212Penerapan Model Pembelajaran Kooperatif Tipe Numbered Heads (NH) Untuk Meningkatkan Hasil Belajar Matematika Siswa Kelas XThis research aims to increase mathematics learning outcomes of students by implementing cooperative learning model of numbered heads type approach in class X 2 SMA Negeri 2 Tanjungpinang even semester of academic year 2011/2012 . This study uses action research of class. It was conducted in two cycles. The subjects studied were students of class X2 SMA Negeri 2 Tanjungpinang with the number of 32 people comprising from 17 male students and 15 female students. Students in the class are heterogeneous in terms of academic and gender. The activity and students learning outcomes data were gained by collecting activity data by using observation sheet and answer sheets of daily test. Analysis of the data used is descriptive statistical analysis that describes the activities of teacher and students, analysis of learning outcomes and succesful measurements. The results in the first cycle found that the percentage of students who achieve KKM is 46.88% and the second cycle was 62.5%, which increased the percentage of prior actions that only 40.62%. The award based on the first cycle of two, a teams awarded good team and seven other awarded great team, while in the second cycle, six teams awarded great team and two teams awarded the super team. The conclusion of the study showed that the implementing cooperative learning model of numbered heads type approach could improving mathematics learning outcomes of students.en-USnumbered headsmathematics learning outcomesstudent Paper Post Degree