How many fans did Dishabao reach in primary schools, middle schools and large classes?

Throw sandbags, small, medium and large classes reach 3 to 5 meters. The children in the big class are only 4 to 5 meters. Children in small classes have limited arm strength and can't throw sandbags too far. It is closer than the children in the big class and can throw about 3 meters. Dumping sandbags can exercise the flexibility and coordination of children's body movements. Cultivate children's creative thinking.