Teacher qualification certificates are divided into kindergarten, primary school, junior high school, senior high school and higher education. Generally speaking, relatively advanced teachers can teach low-level education types, such as high school teacher qualification certificate can teach junior high school or primary school or kindergarten, not the other way around. The teacher qualification certificate of pre-school education is kindergarten, and theoretically it is not allowed to participate in primary school recruitment. But in reality, you may have corresponding specialties, and you may be seconded to a primary school.