Material preparation: A2 drawing.

Operating steps:

1. Measure the points A and C with the same height as A4 printing paper on the A2 drawing, and fold them along AB line and AC line.

2. Measure the dense dot D with the same width as A4 printing paper on the A2 drawing and fold it along the DE line.

3. Fold the drawing in half along the center line FG of CE to expose the icon area and binding area (between AF).

The benefits of origami:

1, improve hands-on ability.

In the process of origami, children's hands-on ability can be improved. Fold ordinary pieces of paper into various beautiful shapes, and children's hands-on ability will gradually improve in the process of origami.

2. Cultivate patience and carefulness.

Origami is a delicate work. Be careful with every crease and every step, otherwise it will break easily. And origami also needs patience, especially some complicated origami, which has many steps. You have to stick to the end before you can get a grade.

3. Learn to think independently.

In the process of origami, children will think about a series of questions, such as "why should this step be folded like this" and "what will it look like after folding", so that they will learn to think independently unconsciously.

4. Exercise coordination ability.

Origami needs the cooperation of eyes, hands and brain, so in the process of origami, children's coordination ability is exercised.

5. Cultivate spatial thinking.

Every origami is a three-dimensional object, so in the process of origami, children's spatial thinking can be cultivated. If children don't know solid geometry, they can also know it through origami.