2. Making Learning Easier
Sometimes in learning process, the students try to learn too much material at the same time.  It can make the learning process ineffective. By using this media, it
can help the students to be more focused on the most important element of what they learn.
2.5.2 The Disadvantages of Using Flashcards
Besides  some  advantages  of  teaching  vocabulary  by  using  flashcards,  there are also some disadvantages in teaching vocabulary by using flashcards. According to
Leny  2006:26  there  are  some  disadvantages  of  using  flashcards  in  teaching  and learning process as follows.
1. Students can pay attention on the flashcards more than on material learned.
2. Small  and  unclear  flashcards  may  arouse  problems  in  the  teaching  learning
process since the students may misunderstand about pictures. However,  there  are  some  possible  ways  that  can  be  used  to  overcome  the
problems as follows Leny, 2006:26. 1.
The teacher should control the students’ activities including their attention during the teaching learning process.
2. The  teacher  should  make  or  choose  big  and  clear  enough  pictures  in  order  to
avoid misunderstanding about the pictures.
2.6 The Use of Flashcards to Improve the Students’ Vocabulary Achievement
People  can  master  English  if  they  have  sufficient  vocabulary  because vocabulary is  one of the language components that play  a key  role in  four language
skills:  listening,  speaking,  reading,  and  writing  Fardhani,  2005:30.  Therefore, without vocabulary, we cannot master English.
Nowadays, the 2013 curriculum and the 2006  curriculum  KTSP 2006 have been  implemented  by  some  schools  in  Indonesia.  In  Jember,  SMPN  9  Jember  does
not  choose to  apply  curriculum  2013, instead, it applies the 2006 curriculum  KTSP
2006 in 20152016 academic year.  According to the 2006 curriculum in English for junior high school, there are four language skills that should be taught to the students
namely listening, speaking, reading, and writing and three language components such as  grammar,  pronunciation,  and  vocabulary.  Then,  vocabulary  is  taught  integratedly
with  the  four  language  skills.  Therefore,  an  English  teacher  should  be  creative  to teach  English  to  students  and  use  the  appropriate  and  interesting  media  in  order  to
make  students  easy  to  master  the  vocabulary.  One  of  media  that  can  be  used  is flashcards.
Flashcards  are  very  beneficial  to  be  used  for  teaching  vocabulary.  As explained  in  the  previous  section  flashcards  can  help  students  improve  their
vocabulary.  This  supports  the  previous  researches  Wang,  2010  that  flashcards  can stimulate  visual  memory  that  means  that  the  students  will  remember  what  they  see
while  studying  this  way.  According  to  Schmitt    Schmitt,  in  Komachali  2012:2, flashcards can help learners in acquiring vocabulary more effectively than word lists.
In this case, Nugroho 2013:6 states that flashcards which consists of some pictures attract  the  students  to  know  and  learn  vocabulary  so  that  their  vocabulary  mastery
develop  and  improve.  This  supports  the  previous  research  Ervin,  in  Komachali, 2012:2  that  showed  the  use  of  flashcards  was  effective  in  learning  English  as  a
foreign language.
2.7 The Research Hypothesis