This week, Ms.Fang and I found a new way to cooperate. Considering the difference between the Chinese level of students in the two classes, Ms.Fang needs to undertake more teaching tasks in the class with lower level, while I need to undertake more teaching tasks in classes with higher level of students. When students' Chinese level is not high, they rely on their mother tongue heavily. Therefore Ms.Fang undertakes the main teaching tasks in that class. When the students' Chinese level is slightly higher, it is appropriate to use immersive teaching.