Four square pieces of paper. 7 cm square paper, 8 cm square paper, 9 cm square paper, 10 cm square paper. A rectangular piece of paper. Glue.

1, take out a square piece of paper.

2. Fold a "meter". Fold two diagonal lines and two center lines.

3. Fold in along the crease.

4. The left and right corners are folded to the center line respectively.

5. Fold the other three parts in the same way.

6. Combine as shown in the figure.

7. Take out the rectangular paper and fold it in the middle first.

8. Fold the upper and lower sides to the center line respectively.

9. Fold.

10, stick it with glue.

1 1. Combining the two parts, a simple and beautiful pine bookmark is completed.