Nowadays, it is widely argued that size of class directly impact on sufficiency of the lesson and how well students conceive the knowledge, information that their language tutor give them. However other believe that the size of class doesn't play significant role and depends only on level quality of language teacher. In point of view the amount of language students in one class play significant role. In this essay i will dicsuss whether the size has impact the level of comprehension of student or not.