Material preparation: template, orange cardboard, green cardboard, scissors and glue.

Operating steps:

1. Print or draw the template as shown above, and cut out the external outline.

2. Then cut it along the line and put the note aside.

3. Each note is folded at one end for a short time.

4. Fold a crease at the other end of the note.

5. Fold each piece of paper into a semi-circular arc and stick it firmly.

6. Cut two carrot leaves with different sizes with green cardboard.

7. Put the green leaves together in a circle, stick them together and dry the glue.

8. Is it simple to make such a three-dimensional carrot?

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.