In keeping with the recommendation of the Education Reform Committee to limit the size of newly built schools to 48 classes, the six grades at Yung'an have eight classes each. Within each grade, the eight classes are divided into two "class groups," A and B.
為了符合行政院教改會「新建學校規模以四十八班為上限」的建議，永安國小六個年級，每年級八班，然後再以四班為單位，分成 A、B 兩個班群。