Free-form entry eg: '125000km', '1.5 million inches', '$67bn', '45000000 AUD', 100years', '123456789', '1 trillion', '1.5e6', '25 million kg'

This thought-provoking blog post accurately describes one of the most important reasons for mathematical (and other) education: for the habits of thought and not always only for the content.

Numeracy, and a numerate approach to understanding the world, becomes a habit also. Keep asking: “is that a big number?”

https://medium.com/@jeremyjkun/habits-of-highly-mathematical-people-b719df12d15e#.njlr8pyp5

Wonderful tale by Ben Orlin “Math with Bad Drawings”, of a creature exploring the world of numbers, very much in the spirit of “Flatland”.

http://mathwithbaddrawings.com/2016/01/20/the-number-line-a-journey/

Jules Verne sent Phileas Fogg around the world in 80 days, but how far is that anyway? How fast would he have had to travel? How long would it take today to go around the world?

http://www.andrewcaelliott.com/explorations/2017/3/21/around-the-world-in-how-long

Yes, there's now an engaging, informative book based on these numbers. Oxford University Press: July 2018.

Click here to learn more about it.

Click here for Podcast: Andrew Elliott interviewed for New Books Network.