Bird Base Twist Tessellation

We will make this model in stages. First we will make a single unit from a photocopy of the crease pattern. Next, we will make a 4-unit tessellation from a crease pattern. Finally, we will make a third model using special paper without a crease pattern. The first two stages will be done during the class. We should at least get started on the third stage. I will be bringing special paper and photocopies of crease patterns (with permission of the creator).