Generally, there is no rigid requirement for small institutions. If you have the ability, you can take the exam while teaching. If you want to engage in this industry, you'd better take the exam as soon as possible. Teachers in regular schools need academic qualifications and teacher qualification certificates, and teaching assistants may not be so strict. You can start with this kind of work, gradually accumulate some experience, and then teach yourself some relevant certificates. As long as you work hard, you will get something.

Generally speaking, you need a teacher qualification certificate:

Generally speaking, most teaching assistants require candidates to obtain teacher qualification certificates. The work of teaching assistants is to guide the coursework, correct students' homework, be on duty in the department office and supervise the work. In classes with a large number of students, teaching assistants will assist teachers in experimental or practical classes. In many schools, teachers start with teaching assistants and become official lecturers only after reaching certain teaching assistant qualifications. Therefore, as a teaching assistant, you also need to obtain a teacher qualification certificate. I wish you all an early landing and successfully get this national certified red book-teacher qualification certificate.