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CHAPTER I INTRODUCTION
A. Background of the Study
English  is  regarded  as  the  first  foreign  language  in  Indonesia  that  is learned by the students from primary school until university.
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It means English is a very important subject at every level of education. Moreover, English becomes
the  only  foreign  language  which  is  included  in  National  Examination  or  we  call Ujian  Nasional UN from Junior High School to Senior High School.
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Then, it becomes  one  of  some  decision-maker-
subjects  for  the  students’  graduation  to know how well they understand English during their study. Thus, learning English
has been an important thing to do. Although  English  has  been  learned  for  many  years,  the  Indonesian
students still have their own problems. The problems are varied in four  language skills such as listening, speaking, reading and writing. One of the basic problems
that appear in English component which is an important part of a language made up for those four skills; is vocabulary because the student almost fail to bring it to
the mind when he needs the word which is exposed in their class.
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Therefore they have bad performance in their English achievement.
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Peraturan Menteri Pendidikan Nasional Republik Indonesia  No. 372 tentang Pengajaran Bahasa Inggris di Indonesia.
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Peraturan Menteri Pendidikan Nasional Republik Indonesia No. 46 Tahun 2010 tentang Pelaksanaan Ujian SekolahMadrasah Dan Ujian Nasional, Pasal 9.
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Michael  J,  Wallace,  Teaching  Vocabulary  Oxford:  Heinemann  Educational  Books, 1989, p. 9.
“....without an extensive vocabulary, we  will be unable to use structures and
function, we
may have
learned for
comprehensible communication....vocabulary acquisition does not seem to be slowed down
by  age.  In  fact,  Rivers  argues  that  vocabulary  augmentation  seems  to become  easier  as  one  matures,  probably  because  one  has  a  richer
knowledge  of  the  world  on  which  to  draw.  In  addition,  the  more  one’s vocabulary develops, the easier it is to add new words
– the first ten words are probably the most difficult to learn”.
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It means that we can understand oral communication, express our thoughts in  speech,  are  able  to  comprehend  common  reading  material  and  can  write  a
literature with sufficient vocabulary which we have or we call it vocabulary size. In  other  words,  vocabulary  size  can  represent  how  people  well  in  using  English
because  word  is  the  biggest  part  of  a  language.  Therefore,  the  development  of  a rich  vocabulary  is  an  important  element  in  vocabulary  mastery  and  learning
English generally. Vocabulary  mastery  is  one  of  the  factors  to  master  English  as  a  foreign
language.
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It means that the students have the ability in understanding and using the  words  and  meaning.  It  also  plays  an  important  part  in  language  skills;
listening,  speaking,  reading,  and  writing.  The  larger  vocabulary  the  students master,  the  better  they  perform  their  language.  By  having  a  limited  vocabulary,
the students will find difficulties in mastering English skill. Vocabulary  is  central  to  language  and  importance  to  language  learner.
Without  a  sufficient  vocabulary,  one  cannot  communicate  effectively  or  express his ideas in both oral and written forms.
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It means that students at school should master  English  vocabulary  and  its  grammatical  rules  to  make  good
communication  to  the  other  people.    Therefore,  mastering  vocabulary  can  reach the English teaching goals generally.
Based  on  the  writer’s  observation  through  conducting  preliminary  study during  teaching  learning  vocabulary  in  the  first  year  of  Electro  B  class  at  SMK
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David  Nunan,  Language  Teaching  Methodology:  A  Textbook  for  Teachers  United Kingdom: Prentice Hall International, 1991, pp.117-118.
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Joseph  P.  O’rourke,  Toward  a  Science  of  Vocabulary  Development.  Netherlands: Mouton, 1974, p. 26.
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Joseph P. O’rourke, Toward a Science of Vocabulary Development, ... p. 14.
Triguna  Utama  Ciputat,  the  writer  found  that  many  students  had  difficulty  in mastering vocabulary
. It was proved by the result of the students’ vocabulary test in preliminary study. The mean score of the students writing was 53.5, while the
Minimum Mastery Criterion- Kriteria Ketuntasan Minimal KKM was 70.0. The result indicates that the students’ vocabulary mastery achievement was still low.
Besides,  it  was  supported  by  the  result  of  interview  to  the  English  teacher  and students’  questionnaire  in  preliminary  study  that  the  students’  difficulties  come
from  the  weaknesses  of  student  ability  in  memorizing  the  words;  therefore  they did not have ideas what a word mean and when they use it. Secondly, the students
often had difficulty when they do the task because the teacher gives them limited vocabulary.  Furthermore,  the  students  tend  to  be  bored  and  low  participation  in
vocabulary learning class  because the process  of teaching and learning  activities was  monotonous.  So,  to  make  the  students  can  master  and  enrich  their
vocabulary,  there  should  be  an  effort  to  make  vocabulary  learning  more interesting.
Based on the problems mentioned above, the vocabulary enrichment with creativity  in  such  a  different  way  is  needed.  Those  findings  have  serious
consequences for students in English learning, especially vocabulary mastery and the student’s achievement in English.
The  teaching  of  vocabulary  for  senior  high  school  needs  appropriate  and different  strategy  from  the  traditional  way,  in  order  that  the  students  feel
enjoyable,  become  active  in  the  classroom,  and  stimulate  them  to  use  the  words which they have already known and brainstorm the new words around the topic,
even though it appears in their native language first. One of the  strategies which can  fulfill  these  requirements  is  semantic  mapping  which  the  writer  gets  from
several  books  and  questionnaire  of students’  learning  strategies
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.  The  current research  and  practice  in  teaching  vocabulary  from  Hunt  and  Beglar  in  Richards
and Renandya ’s book Methodology in Language Teaching state that:
“In  addition  to  presenting  this  new  information,  teachers  should  create opportunities to meet these useful, recently learned words in new contexts
that  provide  new  collocation  and  associations  Nation,  1994.  Exercise
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See Appendix 3, pp.85-87.
that  can  deepen  students’  knowledge  of  words  include  making  semantic maps w
ith lists either provided by teacher or generated by learners”
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According to Harmer, as he said semantic mapping or word maps are “Word  maps  are  an  extremely  engaging  way  of  building  up  vocabulary
knowledge  as  well  as  provoking  students  into  retrieving  and  using  what they  know.  Word  maps  are  sometimes  used  by  teachers  to  show  how
words  group  together.  Getting  student  to  build  up  their  own  maps  by working  in  groups  as  we  have  suggested  has  the  added  advantage  of
making them try to remember some of the many words they know, while
at the same time learning new words from their peers.”
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In  conclusion,  by  using  semantic  mapping  the  students  can  discover  the relationship  between the words which they have  known, and they  can learn new
words from this strategy which make them more recognize which word they need for  their  better  understanding  in  English.  How  the  student  can  get  these
advantadges  of  using  semantic  mapping  in  learning  vocabulary  is  presented  by this  example,
in teaching about „transportation’, we might divide transportation moved by „wind, engine or muscle’, and students have to find the target words.
The Following is a kind of semantic mapping worksheet in vocabulary expansion:
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Engine
Wind Muscle
Figure 1.1 Semantic Map Sample
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Jack  C.  Richards  and  Willy  A  Renandya,  Methodology  in  Language  Teaching:  An Anthology of Current Practice Cambridge: Cambridge University Press, p. 261.
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Jeremy  Harmer,  The  Practice  of  English  Language  Teaching  4
th
Edition  Edinburgh Gate: Pearson Education Limited, 2007, pp. 235-236.
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Henry  Billings,  Melissa,  and    Christy  M.  Newman,  Adventures  in  Reading: Intermediate New York: McGraw-Hill, 2002, p. 89.
Moved by
Teacher  gives  instruction  by  having  student  brainstorm  words  related  to the
concept of „transportation’ moved by „wind, engine, and muscle’, if it finishes then  the  teacher  asks  student  to  add  two  or  more  new  words  for  each  category.
Sometimes  discussion  between  student-student  and  student-teacher  is  needed  to find the target words.  Finally, it can improve the students’ vocabulary  mastery,
enrich the student s’ vocabulary by finding the new word when they fill in chart,
and help them to remember it. The  use  of  Semantic  Mapping  is  expected  to  motivate  the  students  to
learn, and they don’t get bored in English teaching learning process. Beside that
by  introducing  new  vocabulary  by  this  strategy  regularly,  the  writer  hopes  the students can discover the strategy of defining and clarifying the unknown words.
So, they will get many new vocabulary items as the target words. Based  on  the  explanation  above  the  writer  is  interested  in  enriching
students’ vocabulary and in this research she will try to apply Semantic Mapping as  a  strategy  in  teaching  vocabulary.  In  this  case,  the  writer  will  do  an  action
research  entitled
“ENRICHING  STUDENTS’  VOCABULARY  THROUGH SEMANTIC  MAPPING  A  CLASSROOM  ACTION  RESEARCH  IN  THE  FIRST
YEAR  OF  ELECTRO  B  CLASS  OF  TRIGUNA  UTAMA  VOCATIONAL  SCHOOL CIPUTAT IN 20102011
ACADEMIC YEAR”
B . Limitation and Formulation of the Problem
The writer limits the study in order to achieve the goal of the research. The writer only focuses on the Semantic Mapping as a strategy to teach vocabulary in
the first year of Electro B class of Triguna Utama Vocational School in 20102011 academic years.
Based  on  the  limitation  above,  the  writer  formulates  the  problems  of  the research as follows;
1. Can Semantic Mapping enrich the students’ vocabulary?
2. How is the implementation of teaching English vocabulary through Semantic
Mapping at Triguna Utama Vocational School?
C. Objective of the Study