Upaya Meningkatkan Motivasi dan Prestasi Belajar Matematika dengan Model Teams Accelerated Instruction Siswa Kelas VIII SMP N 2 Sedayu

The purpose of this research was to improve the motivation and learning achievement in mathematic of student of class VIII D SMP N 2 Sedayu using cooperatif learning type teams accelerated instructions (TAI). The subjects of this research was student of class VIII D SMP N 2 Sedayu totaling 32 student. The object of this research was learning motivation and mathematic learning achievement. The result showed that after application of using cooperatif learning type teams accelerated instructions (TAI) in class VIII D SMP N 2 Sedayu, learning motivation and mathematic learning achievement of student has increased. This was indicated by an increase in the result percentage average learning motivation score of 49,63% in the pre-action, whereas at the first cycle improves with average percentage 65,25%. In the second cycle improve to 78,94%. Mathematic learning achievement of student also increased. At the beginning of the test the ability of students who meet the KKM is 37,50%. In the first cycle, the persentage increased to 56,25%. In the second cycle the percentage increased to 71,88%