Fold a Star of David into a Smaller Star of David

A classic puzzle in recreational mathematics is to dissect a shape into pieces that can be reassembled into another shape. For example, you can cut a Star of David (six-pointed star) into pieces that can be reassembled into three smaller versions of itself. In an interesting twist (pun intended) on this, Greg N. Frederickson created a way to fold a star into a stack three layers thick.

Steps

1. Cut out the piece from the pattern.
   
2. Cut slits on the solid lines in the piece.
   
3. Fold each point of the star. Dashed lines are valley folds and dot-dashed lines are mountain folds.
   

Links

• You can see an animation of this fold on Greg N. Frederickson's web site.

References

• (G. H. Frederickson 2008)