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Witch's Hat
Age 11 to 16
Challenge Level 
Start with cylindrical hats.
How could you make a cylinder? Try cutting and unfolding a cylindrical container to see how it's made.
Now explore conical hats.
Roll up a piece of paper and cut it to make a cone, then unroll it. What do you notice?
How could you make a cylinder? Try cutting and unfolding a cylindrical container to see how it's made.
Now explore conical hats.
Roll up a piece of paper and cut it to make a cone, then unroll it. What do you notice?
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