![Paper whale](https://i.washerhouse.com/images/19/882-kitenok-iz-bumagi.jpg)
To work, you will need to take a square sheet of blue paper (necessarily one-sided) and a black felt-tip pen.
![Paper whale](https://i.washerhouse.com/images/19/883-kitenok-iz-bumagi.jpg)
We fold our sheet diagonally.
![Paper whale](https://i.washerhouse.com/images/19/884-kitenok-iz-bumagi.jpg)
Then we make another fold along a different diagonal and unfold the square.
![Paper whale](https://i.washerhouse.com/images/19/885-kitenok-iz-bumagi.jpg)
We bend the upper right part down (towards the midline), forming a triangle.
![Paper whale](https://i.washerhouse.com/images/19/886-kitenok-iz-bumagi.jpg)
Now the same fold needs to be made on the upper left side.
![Paper whale](https://i.washerhouse.com/images/19/887-kitenok-iz-bumagi.jpg)
A fold has formed in the middle that needs to be straightened and brought out.
![Paper whale](https://i.washerhouse.com/images/19/888-kitenok-iz-bumagi.jpg)
The resulting fold must be pulled to the left, then folded to the right, aligning the fold with the midline.
![Paper whale](https://i.washerhouse.com/images/19/889-kitenok-iz-bumagi.jpg)
Let's turn the blank of the future whale over to the other side and simultaneously rotate it 180 degrees.
![Paper whale](https://i.washerhouse.com/images/19/890-kitenok-iz-bumagi.jpg)
We start making folds at the top. But first we bend it on the left side, forming a narrow triangle.
![Paper whale](https://i.washerhouse.com/images/19/891-kitenok-iz-bumagi.jpg)
After this we bend it on the right side.
![Paper whale](https://i.washerhouse.com/images/19/892-kitenok-iz-bumagi.jpg)
Once again we fold the right side towards the middle horizontal line.
![Paper whale](https://i.washerhouse.com/images/19/893-kitenok-iz-bumagi.jpg)
We unfold the blank of the whale to the other side.
![Paper whale](https://i.washerhouse.com/images/19/894-kitenok-iz-bumagi.jpg)
On the left side we bend the corner to the wrong side, thus forming the front part of the whale.
![Paper whale](https://i.washerhouse.com/images/19/895-kitenok-iz-bumagi.jpg)
On the right side we make a tail for our blue whale.
![Paper whale](https://i.washerhouse.com/images/19/896-kitenok-iz-bumagi.jpg)
All that remains is to draw an eye with a black felt-tip pen, and our paper whale is ready.
![Paper whale](https://i.washerhouse.com/images/19/897-kitenok-iz-bumagi.jpg)