17 The responses above reveal that teachers‟ L1 can help the students
to have deeper understanding toward the lesson. The participants mentioned that IC is quite hard lesson. Their teachers‟ L1 could be a
helper in following IC‟s lesson. Then, the students get depper understanding toward the teachers‟ explanation.
This result indicates that L1 serves the function of facilitating tools to increase st
udents‟ comprehension and minimize their confusion. From the interview, participant I ever experienced that she was hard to
understand the material when the teachers use L2. She mentioned,
“Saya setuju karena saya pernah kurang memahami materi IC saat dosen menjelaskan dengan bahasa Inggris dan karena dosen terlalu cepat jadi kita
menangkapnya kesulitan. ”
I ever experinced that it was difficult to understand the lesson when teachers use English in explaining. Sometimes, the teachers quite fast in speaking English, so
it becomes harder to understand.
Based on the interview with participant I, she was worried that she cannot understand well through the teacher‟s explanation if the teachers
use English. If this case happens, the teachers‟ explanation will be hard to understand by the students.
Since L1 can serve the facilitation to the students in IC learning process, L1 could
be used by the teachers to facilitate students‟ better comprehension.
4. Teachers should use L1 to give clearer explanation.
12 participants 60 perceive that their teachers should use L1 to give them clear explanation. Using L1 would turn teachers‟ explanation
clearer, and therefore avoiding students‟ misunderstanding.
18 Participant J mentioned that,
“
Karena ada beberapa materi yang sulit untuk dipahami walaupun itu menggunakan bahasa Indonesia, jadi kalau menggunakan bahasa Inggris akan
lebih susah. Apalagi bahasa Inggris bukan bahasa keseharian jadi akan lebih mudah dipahami dengan bahasa Indonesia.
” There are some materials that is hard to understand, even the teachers already
explained in Indonesian. So, it will be harder and harder if teachers‟ use English. Since English is not our first language.
Similarly, participant K stated that,
“Saya sangat setuju. Karena kita kan juga masih tahap belajar, kita tidak tahu grammar-grammar yang sulit atau kata-kata yang sulit jadi dosen itu harus
wajib menggunakan bahasa Indonesia walaupun hanya sesekali saja. ”
I strongly agree. Because we are in the learning process, we do not know about grammar or difficult words. So the teachers should use Indonesian occasionally
to gives clear explanation.
The responses show that sometimes the teachers‟ explanation in English will be hard to understand, since English is not the participants‟
first language. The second one is that the participants are in the English learning process. So, they perceive that th
eir IC‟s teachers should use Indonesian occasionally to give clearer explanation.
Even L1 is used occasionally, but L1 here provides a tool to help the students in learning IC. The use of L1 in L2 classess does not only
hinder L2 learning but also it helps teaching and learning Tang 2002. The participants perceive there are some difficult materials that
should be explained in Indonesian. So, the existing of L1 in the IC lesson will help the students in gaining more knowledge.
5. Teachers use L1 to explain grammar and difficult materials.
