Low or uneven participation
Only one participant can talk at a time if he or she is to be heard; and in large group this means the each one will have only very little talking time. This problem is compounded of some learners to dominate, while other speaks very little or not a tall.
Mother tongue use
It is easier for the student to use their mother tongue in their class because it looks naturally. Therefore, most of the students are not disciplined in using the target language in the learning process.