1. Prepare a piece of A4 paper.

2. Fold the two long sides in half.

3. After opening, fold the two corners to the middle seam.

4. Then fold down the top corner.

5. Fold the corners on both sides like this.

6. Turn it over and fold the top corner.

7.fold it in half.

8. Finally, the origami plane is completed.

Expand knowledge:

1. Paper airplane (scientific name: autonomous aerodynamic physical model) is a toy airplane made of paper. The earliest paper plane that can be traced back to the 1960s was made in the west in 1909. It is the most common form of aviation origami and belongs to a branch of origami.

2. Development history:

(1) Making toys out of paper is thought to have originated in Greece 2000 years ago, when "kite" was a popular entertainment. But this is not the same as a paper plane.

(2) The earliest paper plane that can be traced back to the 1980s was made in the West in 1909. However, the most accepted production method was put forward by John K. Northrop (one of the founders of Lockheed) in 1930. Northrop Corporation made a simulation test with paper airplanes to discover the flight mechanism of real airplanes.

3. Related news: In June, 20 17,1Ningbo Origami Grand Prix and the 7th China Ningbo Origami Challenge were held in Ningbo. Mao Kewei, who broke the national records of' blank time' and' straight distance', took a straight distance of 48.2 meters.