“Just go,” Mark says, “it’ll be fun.” He’s trying to convince me -- placate, really -- about the merits of going to Luna Park for a potential story. I hate Luna Park. It's dreadful.

But this is not a story about Luna Park. This isn't a story about rollercoasters or terrifying clowns. This is a story about children and mathematics. More specifically, this is a story about the 8th World Education Games.