Led by educator and first-time mum Sandra Lim, who’s clocked over 20 years in the classroom trenches, The Nuggets Academy isn ...

The most famous packing problem concerns spheres. In 1611, the astronomer Johannes Kepler proposed that the densest way to ...

Combinatorics, or at least part of it, is the art of counting. For example: how many derangements does a set with n n elements have? A derangement is a bijection with no fixed points. We’ll count them ...