1. Start with a perfectly square sheet of paper

Paper made specifically for origami can be found

at most craft stores. It is usually colored only on

one side. I used a sheet that was colored on both sides.

2. Begin by folding one edge to meet to other,

with the colored side outward...

...to get this.

3. Open up the paper and lay it flat.

Now repeat step 2 in the other direction,

and open up it up again.
 
 

4. Fold it diagonally with the white side out (pink here).

Line it up corner to corner...

...to get this.

5. Open up the paper, repeat

step 4 in the other direction, and

open up the paper again.