THE EFFECT OF COOPERATIVE LEARNING MODEL TYPE GROUP INVESTIGATION TO STUDENT’ CONCEPTUAL KNOWLEDGE ON TOPIC ELASTICITY GRADE XI FIRST SEMESTER IN SMA N 1 TANJUNG MORAWA A.Y. 2016/2017

The research was conducted to analyzed the effect of cooperative learning
model type group investigation on student’s conceptual knowledge in Elasticity
subject matter. This research was carried out in SMA Negeri 1 Tanjung Morawa. This
research used quasi experiment type with pretest-posttest control group design.
Population is the whole students in grade XI SMA Negeri 1 Tanjung Morawa on 1st
semester, consisting of two classes. Sample was taken using technique of Cluster
Random Sampling. The number of research sample is 34 students for experiment
class and 35 students for control class. The data of student’s conceptual knowledge is
taken by using instrument test in form of essay question from ten indicators. The data
analysis used t-test, from the result of achievement score calculation obtained the
mean of pre test in experiment class is about 15 while the mean of post test is about
63.70 and the mean of pre test score in control class is about 14 while the mean of
post test is about 40.78. During the treatment in experiment class was learned by
using cooperative learning model type group investigation, while control class was
learned by conventional learning model. The result was shown student’s conceptual
knowledge in class of cooperative learning model type group investigation
significantly higher than in class of conventional learning model. It means there is an
effect of cooperative learning model type group investigation on student’ conceptual
knowledge on Topic Elasticity grade XI first semester in SMA N 1 Tanjung Morawa
A.Y 2016/2017.