案例: 李老师今年担任初二(1)班的班主任,她逢周四经常要到区里参加教研活动,令她头疼的是那天下午她班上恰巧有一节自修课,因为班主任不在,自修课的纪律便成了问题。几周下来,李老师发现,自修课违纪的学生中,一个叫张凡一的男生频率最高。张凡一不属于不要学习的后进生,但也不是那种自 Case: Ms. Li served as the class teacher of Grade Two (1) class this year. She often went to the district to attend teaching and research activities every Thursday. Her headache was that she happened to have a self-study class in her class that afternoon because her class teacher was absent. Class discipline has become a problem. A few weeks down, Teacher Li found that among the students who violated discipline by themselves, one had the highest frequency of boys named Zhang Fanyi. Zhang Fanyi do not belong to not learn advanced students, but not the kind of self