How to make a pencil case from paper is as follows:

1. Use a pen and ruler to mark every 3 cm;

2. Fold it in half and make seven equal parts.

3. Fold the four corners into triangles;

4. Open the four triangles and rotate them 90°, then fold the upper and lower sides 3cm in half.

5. Open the folded paper and turn it over again, fold a 6cm triangle on each corner of the four sides, and fold the other side in half to form a right triangle. Do the remaining three corners at the same time

6. After folding the four sides, turn it over, fold the two corners of one side 3 cm, and then fold it in half.

7. Fold both sides in half by 3cm.

8. Find the middle fold position and fold it inward from the bottom.

9. Fold the other side inward in the middle;

10. Close the lid, and the pencil box is completed.

Method 2:

1. Prepare a piece of colored paper, first fold the top two corners downward slightly.

2. Turn it over and fold the top down a little.

3. Fold the left and right sides inward slightly.

4. Fold along the middle to the crease.

5. Fold the lower edge inward.

6. Fold the top edge toward the middle.

7. Arrange the two sides slightly and press the corners in.

8. Put the lid on the box.

9. Such a pencil box is folded.

Method 3:

1. First prepare 24.5*9cm cardboard to line up the drawing. 2. Then cut the four corners as shown in the picture. 3. Then fold it along the drawn line as shown in the picture. 4. Then glue the four corners together and the box is ready. 5. Then prepare 21*15.8cm cardboard to line up the drawing. 6. Fold along the drawn line as shown in the picture.