Poetry and Science
Esbensen, Barbara. Sand dollar.
Esbensen, Barbara. Who shrunk my grandmother's house? Poems of discovery. Douglas & Mcintyre: Vancouver. 1992.
Introduction:  For a unit on marine life, show students pictures (or if you have them, the real thing) of seashells, starfish, and sand dollars.  Have a brief discussion about these types of marine life and how these shells carry live organisms.  Then read the following poem.

Sand Dollar
by Barbara Esbensen

What can we buy
with this loose
money?

It spilled
from the green silk
pocket
of the sea
a white coin tossed up
a careless gift   wet
shining
at the water's edge

Who can break a dollar?

What a bargain? Five
white doves
ready to fly to your hand

Sea Change!

Extension:  Explain that a sand dollar is an animal that if you break open the shell, you can shake out five white doves and when the animal was alive, these dove-shaped pieces were the animal's teeth.  Read the poem again.  Next have the students create their own sand dollars from clay.  Have them include the etching which is on the outside of the sand dollar.
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