2, the national standard school, each classroom area of not less than 54 square meters.
3. In the announcement of the national standard "Code for Design of Primary and Secondary Schools", the requirements for ordinary classrooms in primary and secondary schools are: complete primary schools have 45 students in each class, each class is 1, 36 square meters. If the class size quota is different, it needs to be adjusted at the same time, but all students' seats must be within the "blackboard line of sight".