Sporty_chalk - Chalkdust

Exercise for the reader

What’s hot and what’s not, Issue 18
Fashion is fleeting, Chalkdust regulars are not.
Diagrammatic algebra: On the road to category theory
Aryan Ghobadi gives a maths lecture at a zoo
Folding nets into Johnson solids
How does one produce a net for the broadest class of polyhedra?
Primes à la Euler
Infinitely many primes ending in 1, 3, 7 and 9 proved in typically Eulerian style.
What’s hot and what’s not, Issue 05
Mathematical fashion advice for an ever-changing world
Seven things you didn’t notice in Issue 04
How many did you spot?