In a classroom setting, it is observed that many errors of the students are available and there are many causes of them; but, the most important and well-known one is "L1 interference to the L2". Learners with different L1s make the same errors when learning a particular L2. Especially, Turkish students make such kind of mistakes while learning a particular the second language. If the teachers provide the students for the basic differences between the target language and the mother tongue, the students develop their language skills and they try to think about those differences.