Take your piece of paper and fold it diagonally across the top

Take the bottom of the paper and fold it up to make it line up with the triangle

Cut the rectangle off the triangle, so the paper is now a big triangle

Fold the triangle over

Open the paper up so it is now a square with fold creases

Fold the square in half so that it is a rectangle

Fold the rectangle so that it is a tiny square

Fold the wings up

Voila! You have your paper crane!