In the class of the two-way mid-term exam in the second semester of junior high school mathematics, you should concentrate on listening and think closely with the teacher. Two-way examination means that candidates must sign up for one-way or two-way examination according to their own standards and regulations of colleges and universities. In the second semester of junior two mathematics, I need to attend classes in the classroom, listen attentively and think closely with the teacher, and I have achieved good results.