As in the pre-test, the score of controlled class was nearly the same as the experimental class in almost all
areas. But in the post-test, the lowest score, the average score, the portion of students with scores above 90 and
the portion of students with scores above 125 of experimental class over-passed that of the controlled class by a
great deal. And the average score of the experimental class is obviously higher than that of the controlled class
by more than 7 scores. The portion of students with scores above 90 of the experimental class is higher than that
of the controlled class by more than 18%. The portion of students with scores above 125 of the experimental
class is higher than that of the controlled class by more than 3%. The lowest score of the experimental class is
higher than that of the controlled class by 12 scores. It shows that students in experimental class have made
much higher progress after the implementation of cooperative learning