Check out Skillshare: http://skl.sh/standupmaths
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: http://skl.sh/origami-class
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!
- 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!
Music by Howard Carter
Design by Simon Wright
MATT PARKER: Stand-up Mathematician
Maths book: http://makeanddo4D.com/
Nerdy maths toys: http://mathsgear.co.uk/