Material preparation: colored paper.

Operating steps:

1, first take a square colored paper, first fold the diagonal of the colored paper in half, and then fold the center line in half; Then fold it diagonally.

2. Align one corner with the corner of the straight hall cover, reverse the wax, fold it up, then open it from above, press it down, and fold it up again. The other triangles also repeat this work.

3. One of the triangles is slightly folded in half, then folded down and turned over. If this goes on, the other triangles are repeated, then turned over from above, and the triangle parts are pressed inward.

4. After living together, turn to the other side, stand the cross in the middle, and then hold it with your fingers and rotate it.