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B. Rationale
The students’ speaking skill in SMAN 1 Sakra is still considered as the most difficult skill because the skill contains a complex substance such as
pronunciation, grammar, fluency, discourse, and the social context of culture and situation.
There  are  two  factors  causing  their  difficulties  in  achieving  speaking ability, the first one is from the students. In the classroom during the teaching and
learning process the students are passive, less motivated, less confident, nervous, shy,  and  afraid  of  making  making  mistake,  afraid  of  being  laugh  by  friends  and
never  practice.  they  just  listen  to  the  teacher  explaining  the  material  without understanding  the  meaning,  they  just  keep  silent  without  any  respond  when  the
teacher asked them questions or when their friends were having conversation, they can  hardly  use  English  for  communication  even  in  the  simple  form,  they  always
use their mother tongue for communication, they are not able to produce English word  correctly,  they  are  not  able  to  arrange  English  sentence  even  in  simple
sentence, they cannot produce the language correctly, etc. While the second one comes from the teacher. The teacher tended to
teach text comprehension monotonously. For example, when the teacher taught a certain topic, he or she just explained the expressions related to the topic while the
students listened to the teacher’s explanation, and took notes, or even for sometimes took a nap. The teacher oriented herhis teaching at the written test
which was held in the mid or end semester, even in the final exam. The teacher
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felt guilty if the students could not do the test correctly, because their English mark automatically would be bad or less than standard score. There was no
specially allocated time to evaluate the students’ speaking skill at the end of semester or final exam. This caused the teacher tend to ignore the teaching of
speaking communicatively. The marks of speaking skill were taken from the teacher’s daily observation. The teacher still taught the students with routine
activities without realizing that it would make the students bored and lost their attention to the teaching learning process. As a result, the students were not able
to catch the material easily because of their lost interest and participation. Pondering the above causes of students’ difficulties in learning, the teacher
should be able to discover and create a situation that enables the teaching and learning process to become more easily and enjoyable participated by the
students. In this case, shehe must modify the class into a comfortable condition and apply proper techniques which are adapted to the materials being taught. So,
the students will be enthusiastic in following the class activity without feeling boredom.
Based  on  the  problem  and  causes  above,  the  researcher  proposes  Critical Debate  Technique  as  solution  to  develop  the  speaking  ability  of  the  second  year
student of SMAN 1 Sakra. Critical  debate  is  a  medium  where  the  students  can  train  their
argumentative  competence  in  form  of  debating  process  that  demands  them  to communicate  their  opinions,  argumentations,  statements,  and  other  substances
which support their position in the debate process.
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By applying Critical Debate Technique, students are able to increase their motivation, enhance research skill, promote critical thinking, and develop
communication proficiency. Besides, the debates expose the class to a focused, in- depth, multiple-perspective analysis of issues. Because critical debates have the
added dimension of requiring students to assume a position opposite to their own, they encourage students to challenge their existing assumptions. This can move
students beyond simple dualistic thinking, deepen their understanding of an issue, and help them to recognize the range of perspective inherent in complex topics. In
this way, critical debate may also build appreciation for diversity and develop tolerance for other viewpoints.
Critical Debate Technique has great contribution in speaking since it is a task-based. It is encourage the students to practice their English in real
communication. By using Critical Debate Technique, the students will more confident to speak, more active, freer to talk with their friend in team, without
being afraid of making mistakes and shy or being laugh by friends, lessen their nervousness mainly in their English speaking ability.
Critical Debate Techhique can improve the students’ achievement- speaking ability such as produce the English speech sounds and sound pattern,
select appropriate words and sentences according to the proper social setting, organize their thoughts in meaningful and logical sequence, use the language
quickly and cofidently with few unnatural pauses, which are called as fluency, understanding of content and to overcome the problem face in learning teaching
process.
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Critical Debate Technique is a collaborative technique which can activate the students in teaching learning process in speaking class. It is also hoped to
give the students better understanding of the basic elements of speaking. By understanding the basic elements of speaking, they can improve their ability in
speaking.
C. Action Hypothesis