Material preparation: paper.
Operating steps:
1. First take a couplet paper and fold it in half. This is done so that the width of both sides is the same when folding to avoid different sizes. Then, fold the paper in half and fold it into a two-word grid, as shown in the figure below.
2. Then fold it up and down to form a four-character grid, as shown in the figure below.
3. Then fold it up and down to form a figure of eight, as shown in the figure below.
4. Fold the 8-grid paper in half on both sides of the diagonal without opening it, and the folded effect will be as shown in the figure below.
5. Open the folded paper to form seven rhombic grids, leaving a little space up and down. When writing couplets, write the words in the rhombic lattice, with the horizontal line in the middle of the rhombic lattice as the center line, which is exactly 7 equal parts, as shown in the figure below.