Abstract :
This research is aimed at finding out the influence of cooperative learning, Number
Heads Together model to learning achievement of Bilogi on students of VIII grades at MTs
NW Kabar, Lesson Year 2017/2018.This was an experiment research study. The population
of this research was all of students of class VIII MTs NW Kabar, with the number of students
17 people as the experimental class and 17 people as the control class. The sample of this
research is determined by simple random sampling technique. The research design used in
this research was post-test only control design. The data were analyzed using T-tes technic
analysis.The results showed that, the mean of posttest of experiment class is 10,23 While
hypothesis test using statistical analysis with t test formula at level 5% confidence is
obtained t-hitung equal to 1,84. When compared to thitung with ttable, thitung> ttabel so
that Ha accepted and Ho rejected. Thus, it can be concluded that there is influence of using
NHT to learning achievement of class VIII students MTs NW Kabar year lesson 2017/2018.
Keyword: Number Heads Together (NHT), Learning Achievement