Fold in half and unfold Divide each part in half Divide each part in half Divide into 8 parts also vertically Fold the top down to the last crease on the bottom Turn over Valley-fold along the...
20cm x 20cm Fold along the diagonal and unfold Fold in half and unfold Fold in half and unfold Fold the edge to the crease and unfold Repeat on the other side Fold the top corner and unfold Fold both...