If the classroom is big, for example 30 or 40 students in a classroom, it is clearly that the
students hardly got a chance to practice the language, and difficult for them to ask and receive individual attention they need. It is hard for the teacher to make contact with students at the back, to keep good discipline, also to organize dynamic and creative teaching and learning sessions. But there are advantages of a large classroom: when there are many students in a classroom they can share many different ideas, interesting life experiences, learn to share responsibility and help each other during project work which can bring variety and speeds up the work.