Step-by-step solution for cutting window grilles

Materials: scissors, colored paper, pencil.

1. Find a square colored paper and fold it diagonally.

2. Fold the folded colored paper diagonally again.

3. After diagonal folding, fold both sides of the colored paper in the direction of the center line.

Draw a pattern on the folded colored paper with a pencil.

5. Draw several times to keep the pattern clearly visible.

6. Take scissors and cut off the extra colored paper along the painted pattern.

7. Unfold the cut colored paper and you can get the window grilles.