Under 35 years old. Art teachers must have extensive basic knowledge of culture and science and be proficient in art skills. In order to avoid problems in interaction with children, most schools will set age limits, among which Xi 'an children stipulate that art teachers should be under 35. A teacher is a profession, a person who teaches students correct knowledge. Teachers have all kinds of education, and they also refer to people who are worth learning in a certain way and can bring correct knowledge and ability to everyone.