How to fold ninja darts?

1. Prepare two rectangular pieces of paper with the same size, and then fold them in half.

2. Fold the upper left side down and the lower left side up.

3. Fold the right side of the upper origami and the right side of the lower origami in half.

4. Put two pieces of origami in order.

5. Insert the upper sharp corner of the bottom origami downward and the lower sharp corner of the bottom origami upward.

6. Turn the origami upside down, insert the other two sharp corners into the gap, and gently row it, and the four-corner ninja darts will be folded.

Other methods:

1. First, prepare a piece of paper, then divide the paper in half longitudinally, and then take a piece of paper and fold it in half longitudinally.

2. After folding, fold at a 90-degree angle with the edge, with no open side. At this point, fold it at a 90-degree angle with the side, and do not open it again. Pay attention to leave a small seam when folding, and wait until the last step of folding ninja darts is needed.

3. After folding, you can see that it is folded into an isosceles triangle, and then you have to turn the paper over or fold it at a 90-degree angle with the side without opening. You still have to leave a seam when you fold this corner.

Turn the paper over again at this time. This time, use the open side, fold it in half at a 90-degree angle, and cut off the excess paper. At this time, you will see two isosceles triangles from bottom to top. Now you need to use the paper that has just been split in two. Use this piece of paper and fold two isosceles triangles with the same base in half in the same way.

5. When finished, overlap these two pieces of paper into a cross. After overlapping, insert each corner into the seam, and after all the pieces are inserted, the ninja dart is completed.