Nowadays, universities pay special attention to the quality of teaching. Examination is the most important link to measure the teaching effect. It is impossible for a teacher to have no criteria for judging the final grade. You may not have noticed the various requirements for teachers in college. First of all, you should check the teacher's qualifications for class and lecture. Then the teacher should prepare lessons and teaching documents. Teaching documents include many elements, and the requirements of different schools may be different, but there are basically training programs and curriculum standards. Curriculum standards are the basis for teachers to attend classes, which will involve teaching contents, teaching methods, teaching means, assessment methods and grading standards. Standardized examination is the separation of teaching and examination. Teachers who attend their own classes can't give questions by themselves, but the educational administration randomly draws papers from the examination paper library. The names of students who have finished the examination are sealed, so the whole process is strict. The revised papers are generally archived for various teaching checks, so teachers will not change their grades at will, which is responsible. As a teacher, it is a basic moral quality to treat students fairly. If you feel that your grades are not in line with your expectations, you can apply to the teacher to read the papers normally. Trust the teacher.