This research was designed to answer whether or not the use of
Word Wall media in teaching procedure text is effective and how significant
the effectiveness. This is a Quasi Experimental design and the numbers of
total sample were 30 students for each group (experimental and control).
The researcher did a pre-test to know the prior knowledge of the students
after that gave the treatment for the experimental group by using Word Wall
media, and did post-test in order to get the score of the students after
treatment given. The result showed that the students’ score of experimental
group were higher than the scores of control group. Then, the effect size of
the treatment was qualified as moderate effect. Thus, it can be concluded
that the use of Word Wall media give a high significant effect to increase
the students’ achievement in writing procedure text