Pengaruh Model Pembelajaran Kooperatif Tipe Student Teams Achievement Divisions (Stad) Terhadap Kemampuan Pemahaman Konsep Matematis Siswa Kelas VIII SMPN 1 Rambah Hilir

This study aims to determine the effect of Student Teams Achievement Divisions (STAD) cooperative learning model toward the ability of mathematic concept understanding at eight grade student of SMP N 1 Rambah Hilir. This was Quasi Eksperimen type with desigh Two-Grup Posttest Only. The population of this research was students class VIII SMP N 1 Rambah Hilir. Techniques of data collection was done by using a test. Techniques of data analysis in this research used was t test, calculate results obtained thitung= 2,273 and ttabel=2.019, was thitung > ttabel , for α = 0,025, so hipothesis accepted. In conclution Student Teams Achievement Divisions (STAD) cooperative learning model influences toward the ability of mathematic concept understanding at student class VIII SMPN 1 Rambah hilir