1. Take a square piece of paper, as shown in the figure, fold the two opposite corners in half, and then fold them in parallel.

2. Grab two corners and squeeze into the middle, which is a double triangle.

3. Fold up the two corners on one side.

4. Fold the corners on both sides inward.

5. Fold down the two small corners above and put them into the gaps on both sides respectively.

6. Fold the other side in 3-5 steps, as shown in the figure.

7. At the white box in the picture, fold it back and forth, fold out the mark, and then blow into the white circle in the picture.

8. Blow and blow, and the origami balloon will be ready.

Origami is an art that transforms a piece of paper into different forms through different folding methods.