What is the folding method of the swallow paper airplane?

Needed materials: paper

1, prepare a piece of notebook paper, as shown in the following picture:

2, the top square folded into double triangles, as shown in the following picture:

3, the two sides of the alignment of the center line folded, as shown in the following picture:

4, with a hand cupped the middle of the downward pressure, as shown in the following picture:

5, will be the top of the small Triangle to the opposite side of the fold down, as shown below:

6, the following fold out of the wings of the airplane can be, as shown below: