get your one paper and make you four piece.here how to piece see the imges
Step 2: Thrith step
Fold all the points to the middle and Just follow the pics, I just don't know how to explain this.You will end up with the first picture in this step. Just fold the top-triangle to the back, and then turn the whole thing around.
Step 3: Piece finish
The finished piece!!! You will have to repeat all the steps 4 times extra and than continue to the next step.