1. If you want a tutor, you must first decide whether to hire an in-service teacher or an undergraduate tutor. For parents of students with inconvenient transportation and no ideal university around their home, it is better to ask in-service teachers for guidance. As long as the teacher agrees with this tutor, go if the journey is inconvenient.

2. If the transportation is convenient or there is an ideal university around, you can consider hiring an undergraduate tutor.

3. The advantages of in-service teacher tutoring are: strong comprehensive ability, which can quickly improve students' grades. But the cost is high and it is not suitable for long-term invitation.

The advantage of undergraduate tutoring is that the cost of tutoring is low, which is of great help to students who are not conscious. But the teaching methods and abilities are even worse.

Second, the choice of instructors should be wide.

Some parents have more requirements for tutors, for example, they must be Shanghainese, female teachers, in-service teachers in key schools, famous undergraduate tutors and professional teachers, and attend classes at any time. Parents' demands are understandable, but they are often not. Undergraduate tutors, with many foreign teachers, in-service teachers from non-key schools and non-famous universities, have done a very good job and are well received by parents.