students with interesting media. There are not enough dictionaries provided by the school for the students and many students do not have it.
C. Limitation of the Problem
Based on the background of the study and the identification of the problem above, there are some problems related to teaching and learning process. It is
impossible for me to solve all those problems. So, this research is only limited on improving tenth grade students‟ vocabulary mastery in SMAN 4 Purworejo. I
decided to overcome this problem by using Bingo Game because it was rarely used to teach vocabulary. The teacher seemed to use monotonous technique so
that it influenced the students‟ interest on the lesson. It can also be one of the
factors that influence the low level of students‟ vocabulary mastery. Therefore, in order to make the vocabulary learning more interesting and fun. I decided to
use Bingo Game to improve students‟ vocabulary mastery in SMAN 4
Purworejo. There are some reasons why I choose Bingo Game
to improve students‟ vocabulary mastery. First, like the other games, Bingo can be used in any part of
the lesson as an effective way of language teaching. Second, it can encourage the students to work in pairs or groups. So it provides the opportunity for the
students to recognize and appreciate the contribution of others and use team- building skills. Third, Bingo
can increase students‟ motivation to learn. Since it is interesting and fun, the students do not feel bored to follow the lesson. Fourth,
Bingo is not only fun and interesting but it also gives an opportunity to face
challenge and to solve problems in the game. Finally, the students could also learn to concentrate and to think carefully in order to win the game.
D. Formulation of the Problem
Based on the background of the study above as well as the identification of the problem and limitation of the problem, the problem was formulated as
follows: how could Bingo Game be implemented to improve students‟
vocabulary mastery of grade X students at SMAN 4 Purworejo?
E. Objective of the Study
The objective of the study is to improve students‟ vocabulary mastery
through the use of Bingo Game in vocabulary teaching and learning process of grade X of SMAN 4 Purworejo.
F. Significance of the Research
It is expected that this research contribute some significant progresses in
teaching vocabulary. The significances of this research are:
1. For the students in general, the study could enhance the students‟ motivation
and improve the students‟ vocabulary mastery. 2.
For teachers, the study gives input in enriching their teaching media to be implemented in the classroom.
3. For the school, the study will enrich teaching media in the school.
4. For the writer, the study could bring him to a better understanding of
improving s tudents‟ vocabulary mastery and give practical contributions to
him on how to improve students‟ vocabulary mastery using Bingo Game.
5. For other researcher, the study could be a kind of references to conduct the
same type of research.
CHAPTER II LITERATURE REVIEW AND CONCEPTUAL
FRAMEWORK
As stated in the previous section, the aim of this research study is to improve students‟ vocabulary mastery. Therefore, the discussion in this chapter
will focus on the review of related theories underlying the study. It consists of two major sections, namely theoretical description and conceptual framework.
A. Vocabulary
1. Definition of Vocabulary
As explained in the background of the study, vocabulary takes such a fundamental role in mastering English as foreign language well. There are some
definitions of vocabulary proposed by some experts.
Hornby 1995: 1331 mentions his definition of vocabulary as the total number of words in a language and vocabulary as a list of words with their
meanings. Richard and Schmidt 2002: 580 argue that a set of lexemes, including single words, compound words and idioms. Shared reading, defined by
Hatch and Brown 1995 as the term vocabulary refers to a list or set of words for a particular language or words that individual speakers of language might
use. According to Ur 1996: 60 vocabulary can be defined roughly as the
words teacher teaches in the foreign lang uage. The term “words” here means
that the new item of vocabulary maybe more than a single word, for example,
