Standard size of sandbags for junior high school students

Sandbag with side length 15cm.

It belongs to medium-sized sandbags. 15cm sandbags can be kicked or hit. After all, I am too young to play with sandbags. Sandbags are for older children.

Sandbag is an instrument for practicing throwing on physical education class in primary and secondary schools in Chinese mainland. Generally, dry yellow sand is packed in a small bag made of thick cloth, which is slightly larger than baseball. Sandbag game is not only a kind of sports game, but also carries out educational activities in many fields through cognitive activities such as speaking, singing, drawing, pinching and counting, which not only enriches children's activities, but also cultivates their feelings of loving folk art activities. There are many ways to throw sandbags, and one of them is the most popular. First, draw a big circle on the sunny terrace or open space, and divide the participants into two groups by drawing lots. One group stands outside the circle and the other group stands in the circle.