At the beach I had a lovely massage at the Jade Tortoise, and whilst waiting I discovered a wonderful text called "Pebble Maths" .
http://www.pebblemaths.org/Teaching-Manual.html
I only had a chance to read a few of the first pages but it was so intuitive and interesting I have just ordered it online
Once I receive it I will tell you more about it..
Further reading on this has lead me to Vedic Maths. Amazing. So much more simple than conventional Maths.
You can download the elementary text for free.
http://www.vedicmaths.org/Home%20Page.aspLabels: Maths