In the square formation of the sports meeting, what props should the students walking in the team hold better?

Props such as banners, balloons, garlands, and signs are all acceptable.

Creative ideas of square array: shift and deform while marching, wear different clothes, spell out letters or patterns, and shout different slogans.

Phalanx: The phalanx is a formation used by ancient armies in combat. It is a square formation in which the troops are arranged in open fields. The ancient phalanx consists of the front army, the middle army and the rear army nested in each other. The plane of the phalanx is in the shape of "hui".