[pbhjpbhj]

This page is almost an exemplar for the story I was reading earlier about "coders can't market". Your site looks useful and like bingo-card generator could earn you a nice living - I'd check out his marketing and design (colourful and bright not drab brown, teachers need joy!).

Also you should check out your competition, decide what your unique selling points are and market your advantages.

Your strapline sucks, IMO, something more like "the super-easy, super-fast, instant online maths* worksheet generator; because practice makes perfect".

I'd also look at the Home-Ed market and spam some of their forums ... in a nice way.

* It's maths dammit, not math.