The boring and demure class atmosphere can help to cultivate discipline of children.However, it is of no use to enliven students thinking and enlighten them in discovering problems by themselves.

• 沉闷严肃的课堂气氛，可能有助于培养孩子们的纪律性，但是，它却对活跃孩子们的思维，启发他们自己发现问题没有多大帮助。