The aim of the research was to get the evidence whether or not Tic-Tac-Toe
Game was effective in teaching speaking at tenth grade of SMA Muhammadiyah
Tambak in Academic Year 2015/2016. This research used quasi experiment
method in which the subject of the research was the students of the first grade in
SMA Muhammadiyah Tambak. The total numbers of the students were 30
students, and they were from X-1 as the experimental group which consisted of
the 14 students and X-2 as the control group which consisted of 16 students. Tic-
Tac-Toe Game was implemented in experimental group, while the control group
was treated with conventional technique of teaching. The data was collected by
conducting pre-test and post-test in the form of practicing a monologue about
describing people. After the data were obtained, it was then analyzed using t-test.
The result of the t-test was 2.222, and it was higher than t-table (2.048) at α 0.05
with df= 28. Therefore, it can be concluded that Tic-Tac-Toe Game was effective
in teaching speaking at the tenth grade of SMA Muhammadiyah Tambak in
Academic Year 2015/2016.