The objective of this study is to know the effectiveness of word wall media toward students’ speaking skill in descriptive text at the eighth grade students of MTs. Nahdhatul Muslimin Undaan Kudus in the academic year 2015/2016. This research was quantitative research using experimental method. The participants of this research are 92 students that were divided into two classes, namely control class (46 students) and experiment class (46 students). The writer used cluster random sampling technique to determine the sample.
The writer collected the data using test and documentation. Furthermore, the data was analyzed by using statistical analysis technique and the hypothesis used t-test. Hypothesis test shows that teaching speaking descriptive text using word wall is effective toward students’ achievement. This can be seen from the results of test score, it shows that the experimental class which were given treatment using word wall as media of learning got higher score that is 68,96 compared with the control class who did not give the same treatment. This class got 63,96.
Based on the t test with the standard of significance of 5%, it was found t count 4,245 and t table 1,67. Because of t count ≥ t table, so there was real difference between results of study of teaching speaking skill using word wall as a medium and teaching speaking skill without using word wall as a medium. Consequently, teaching using word wall as a medium was more effective when it was applied in the process of teaching English than the conventional teaching English (a class which was not given the same treatment).