Message #2775

From: Melinda Green <>
Subject: Geo Builders
Date: Sat, 31 Aug 2013 17:06:05 -0700

Hello friends,

I just got a random catalog in the mail with the cover photo showing a
set of dodecahedra that can be stuck to each other at their faces. See

I have to imagine that curious kids will notice that they
almost-but-not-quite fill space and wonder why not. Truncated octahedra
would have been a better choice but I like the teachable moment that the
dodecahedra create.