How to make an edge-coloured origami dodecahedron
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Go straight to the origami star lesson: http://skl.sh/origami-class
Download my two colourings of the dodecahedron graph.
https://www.dropbox.com/s/x1sn5tqi4ara9ov/dodecoration-three-colour.jpg?dl=0
https://www.dropbox.com/s/3rpsbitya3np1x4/dodecoration-five-colour.jpg?dl=0
The site “What’s on my blackboard?” has a great post on colouring dodecahedra, which I found very useful.
https://whatsonmyblackboard.wordpress.com/2011/07/11/colouring-dodecahedra/
Here is the Petersen Graph on wikipedia.
https://en.wikipedia.org/wiki/Petersen_graph
So far I have been sent ZERO solutions to the “Why those six pentagon edge-colourings” challenge. Watch this space!
CORRECTIONS
- I sometimes say things like “three colouring” without specifying that I’m talking about colouring the edges, not the vertices (which are the default option). But I hope it is clear from context.
- Let me know if you spot any other errors!
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MATT PARKER: Stand-up Mathematician
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