C. Teaching Vocabulary by Using Cooperative Learning
Vocabulary  is  something  to  deliver  in  the  oral  or  written  communication. And vocabulary is not easy to be increased without a proper way of how to build
it up. Cooperative
learning is  the  instructional  use  of  small  groups  so  that students  work  together  to  maximize  their  own  and  each  other’s  learning.
Cooperative  learning  can  motivate  students  to  memorize  vocabulary  easily  and also happily. Teaching vocabulary by using cooperative learning is not only as an
effective tool for bringing out students from the monotonous or boring situations in learning process, but also for developing students’ vocabulary.
In  my  hypothesis,  teaching  vocabulary  adjective  by  using  cooperative learning at  eight  grade students of MTs. Al-  Ishlah is  an alternative teaching aid
because  almost  the  students  like  work  together  to  understand  for  the  lesson.  By cooperative  learning  students  practice  to  use  vocabulary  to  try  small  group
learning skill and adapt with other students. To apply cooperative learning in teaching learning process, the teacher
has to do as follows: 1.  Present  and  explain  the  goal  of  the  cooperative  learning  strategy  and  the
material clearly. Before  the  student  get  the  teaching  learning  process,  make  sure  that  the
students  know  exactly  what  to  do  before  they  are  divided  into  groups.  The teacher  simply  explains  what  cooperative  learning  is,  why  they  are  doing
cooperative work and what they are supposed to do. After  that  the  teacher  explain  about  vocabulary  of  adjective  using
objects, questions, model of dialogue, and explain about rule of adjective and then practice it in written and oral.
2.  Make small group based on the heterogeneous class Make a group based on their grade in the class; for each group contains the
smart,  adequate  and  less  smart  students,  each  group  contain  five  students. Students  do  help  one  another,  because  the  kind  of  work  they  have  to  do
involves cooperation and collaboration. And the teachers only have to listen into group work to hear students correcting one another’s mistakes.
3.  Give the instruction clearly, whether it is individual project or group project The  teacher  explains  that  each  group  will  accept  the  different  project;
shehe explains that each student will be an expert. In the “expert step” the student in each group will learn the project together. Then, the teacher asks
one student of one group to teach his group’s project to the other groups, so do the other groups.
4. Monitor  students  „learning  and  involved  within  the  groups  to  provide  task
assistance or to increase students’ teamwork skill.
The teacher gives the students opportunity to acquire learning experience in order to reach the goal of learning activity. During the students are getting
work, the teacher systematically observes and collect data on each group as it works.  When  it  is  needed,  the  teacher  intervenes  to  assist  students  in
completing the task accurately and in working together effectively. 5.
Evaluate the students’ achievement through giving the test The teacher gives the test to know how well the students understand about
the material, and to know how well the group functioned.
D. Relevant Study
The writer took two previous relevant studies as a guideline to implement the research, they are:
1.  The  research  about  vocabulary  mastery  using  cooperative  learning  had  been done by
Kristiantari that was “The Effectiveness of Cooperative Learning to Improve Students’ Vocabulary Mastery A Classroom Action Research at the
Eighth  Grade  Students  of  Madrasah  Tsanawiyah  Nadlotul  Muslimat Surakarta  2009-2010
”
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.This  research  explained  about  the  application  of
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Kristiantari, The Effectiveness of  Cooperative Learning to Improve Students’ Vocabulary Mastery A Clas sroom Action Research at the Eighth
Grade Students of MTs.Nadlotul Muslimat Surakarta 2009-2010. Master’s thesis,
Sebelas Maret University.