1. Prepare necessary materials: toothpaste box, four identical small bottle caps, double-sided adhesive tape, scissors, plasticine and straws.

2. Cut out the toothpaste box as shown in the figure. Note that the left and right sides should be the same size.

3. Stick the edge of the upper piece with double-sided tape, fold it down and stick it tightly.

4. Cut off the front and rear of the car with extra paper, as shown in the following figure:

5. Put plasticine in the bottle cap and flatten it. Use a straw as a shaft and insert plasticine.

6. Then make two pairs of wheels and glue them under the car body with transparent glue.

7. Such a small racing car has been completed.

For children, origami games have many benefits. Origami can exercise the flexibility of children's fingers and develop their hands-on ability and innovation ability; Things in life, small animals, vehicles, etc. Become an image origami. In this process, children's spatial imagination will also be improved.

For the elderly, origami games can not only help them use their brains, activate their thinking, and achieve the overall coordination of the trinity of hands, eyes and brain, but also prevent the memory of the elderly from declining. Some sanatoriums use origami as a treatment for patients' rehabilitation.

The "origami mathematics" derived from origami art is proved by equations: theoretically, any geometric form can be simulated by origami. With the help of computer software aided design, today's origami researchers can fold more complicated graphics than before.

In Kamiya Satoshi, a 2m× 2m square paper was folded into a dragon, and its scales and claws were clearly visible. It is said that there are probably no more than 20 successful origami people in the world.

On the other hand, modern origami is not only an art, but also a new science: origami mathematics. It has been applied to the solar panels of artificial satellites, the storage methods of automobile airbags, and even the structural design of the Hubble Space Telescope, all with the help of origami mathematics.