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Check out Skillshare: Using the code STANDUPMATHS you can get two months of the premium version for free (which is normally from $8 USD per month). Go straight to the origami star lesson: Download my two colourings of the dodecahedron graph. The site “What’s on my blackboard?” has a great post on colouring dodecahedra, which I found very useful. Here is the Petersen Graph on wikipedia. 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 e
