1. First, double a square piece of paper diagonally so that the two corners overlap. Expand the figure and form a plane perpendicular to the crease by adjusting the position. Fold it diagonally again, add a crease perpendicular to the previous crease, and then unfold it again.
2. Turn the paper over and fold it in half, so that the country and the edge overlap. Then spread out and turn back to the original side. Here, two creases that cross each other vertically appear as valley lines, and the remaining creases are mountain lines. Adjust the paper to keep the crease level.
Press the center of the paper with one finger. At this time, all the creases will be slightly bent, and a concave surface will appear in the center. Carefully fold the two outer surfaces inward so that the edges overlap in the middle. After flattening, you can see that the folded part just covers the triangular area under the paper.
4. Make a downward fold at the top corner as a bird's head. Pick it up and unfold the crease. According to the crease, turning up is reverse folding. Also according to the crease, fold the bird's head out and flatten it. Finish the work.
Origami, also known as "craft origami", is an artistic activity of folding paper into various shapes. Origami has gradually developed into a children's toy, an activity that is beneficial to the body and mind, develops intelligence and thinking, a symbol of peace and commemoration, and an excellent pastime.
The combination of origami and natural science. Origami has not only become a teaching aid in architectural schools, but also developed into a branch of modern geometry.