Teacher Zhang in this class often calls the roll. According to the classmates who attended his class last time, it generally accounts for 60%. Come to the classroom about 10 minutes in advance, and don't be late. As for how to deduct points, I don't know. I may have to make a spot check in the middle of class in case anyone answers or slips away. Examination accounts for 40%, and the focus and scope of the course are drawn during class, not after class, so it is not difficult to attend class. But some courses are not tested like this every year, so it is impossible to open books and close books or hand in papers.