The first grade of primary school is divided into classes, mainly depending on whether there are more or less first-grade students in the school. If there are more classes, you can divide them into 3-5 classes, and if there are fewer classes, there will be about two classes.

Primary education is generally a six-year system, which is divided into three stages: grade one, grade two is called junior grade, grade three, grade four is called middle grade, grade five and grade six is called senior grade.