It's LIFE Jim, but not as we know it !

Take a sheet of A4 (or larger) and lay it down in portrait format.

Fold the top right hand corner down to the left hand side, so that the entire width of the top of the paper evenly meets the left hand length of the paper. You will be left with something that should look like this.

Fold the top left hand corner down so you get a shape like this.

Now fold the paper in half (you should get a shape that looks a bit like a paper areoplane).

 

Holding the paper like this, rip or cut it into three strips.