THE DIFFERENCES OF STUDENTS’ LEARNING ACHIEVEMENT BY POSTER DISPLAYING ON ENVIRONMENT TOPIC GRADE X SMA OF MEDAN ACADEMIC YEAR 2015/2016

The study aims to know the difference of learning achievement by
poster displaying in the environmental topic. Type of the research was quasi
experiment and was designed with pre-test and post-test. The population is the
students in SMA Negeri 3 and 4 Medan academic year 2015/2016. The samples
consists of two groups selected purpousively for each of school, grade X MIA 10
as poster making inclution group (n=40 students) and X MIA 7 as poster nonmaking
inclution group (n=40 students). Learning method in both groups was
goup discussion. In first group, used poster making inclution and poster nonmaking
inclution for the second. Multiple choice test was the instrument for
cognitive data collection and questionnaires were used for student performances.
Hypothesis wass tested by t-test. The students learning achievement result showed
that, the average score in poster making inclution group (74.92) was higher than
poster non-making inclution group (67.13) with persentage difference is 38%.
tcount with ttable is tcount > ttable ( 4.175 > 1.994) (with α=0.05 and df=78). Based on
the data from research result used tcount > ttable then H0 was rejected and Ha was
accepted. It means there is difference of learning achievement between student
who were treated with poster making inclution and those treated with non-poster
making inclution model on Environmental topic of Grade X in SMA at Medan
Academic Year 2015/2016.