1, flatten the straw and fold it into a right angle, and there will be a small triangle in the middle.

2. Fold the straw to the top and the lower one to the top under pressure.

3. Divide the original small triangle into two and take back the thicker triangle.

4. Repeat the above operation and fold the triangle every two times. After the method is correct, a stack of small triangles will be folded, and it will be loosened after about 5 times.

5. Take a triangle at the left and right ends, put it together, and press the other corners together to get a square. The two straws will be folded in half, and the corner pressed out can be folded all the time.

6. When the two straws become shorter, find a place for the stars to pass through, and then cut off the protruding straws.

? Extended data

The benefits of children's physical labor

1, enriching children's childhood life

Handmade can not only help children learn things, but also enrich their lives and make their childhood full of joy.

2. Promote the development of physiological mechanism.

In the process of handcrafting, children should mobilize all their senses, not only the coordination of their left and right hands, but also the coordination of their hands and brains. Through practice, there will be perceptual cognition, thus promoting the evolution of the brain.

3. Increase brain capacity

According to a foreign study, contact with artistic activities (such as handicrafts, painting, music, etc. ) When I was a child, I could increase the capacity of my brain.

4. Improve the coordination ability of hands, brain and eyes.

Fine movements can not only increase the flexibility of the hand, but also improve the brain-eye coordination ability of the hand.