Language is a very important thing that people have to master. People
use language to communicate with others. Language has elements. Vocabulary
is one of them. Language is nothing without vocabulary. Knowing how
important vocabulary is, people have to master it in order to achieve
successful communication. Talking about mastering vocabulary, it is not
always easy for some people especially when people learn language which
they never spoke before. English is an international language which is used by
many people all around the world. Mastering English demands mastering
vocabulary as well which might not always be easy. There are many ways or
media to learn vocabulary. Word Search Puzzle Game is one of them which
can be used to make vocabulary learning process easier. Word Search Puzzle
Game is a puzzle containing several hidden words on letters arranged in a
grid. The researcher used this media to solve vocabulary problem in SMP
Muhammadiyah Sokaraja. The subject was the students of class VII A because
their vocabulary mastery was still low. The class consisted of 32 students. The
research methodology used was Classroom Action Research (CAR). In
collecting the data, the researcher used test, questionnaire and observation.
The research objective was to improve students’ vocabulary. After collecting
and analyzing the data, the data analysis shows that the students’ scores
improved. The students’ mean score in the pre-test is 56.7, in the post-test 1 is
76.9, and in the post-test 2 is 83.8. From the questionnaire, it shows that the
students gave positive responses about Word Search Puzzle Game which was
used as a media to teach vocabulary. The observation which was done during
the research shows that the students showed good attitude. The teaching and
learning process lasted well. From all the data, it is known that Word Search
Puzzle Game improved the students’ vocabulary at class VII A of SMP
Muhammadiyah Sokaraja.