Some times I meet people who are surprised when I suggest that all aspects of maths can be taught outdoors. After all, money and playing in a natural space do not obviously go hand-in-hand the way that perhaps it would with a role play area about a train station.

Honesty or Lunaria annua is one of my favourite plants because it's beautiful seed heads are one of winter's wonders. As a child I adored the translucent paper thin head and the seeds tucked in between the thin flat pods. It is the seeds that are the "money". In the right garden, a child could become very rich. I rather like the potential for the seeds to become fairy money or nature's money.