If I drop a mouse down a (dry) well, it will probably walk away. If I do the same with a polar bear (ok, so think of it as a scaled-up mouse), it will go splat and make a large crater. Galileo knew this (the picture is from his “Two New Sciences“) – it’s very similar to his ‘why giants can’t exist’ proposition.
Now I bet any maths teachers out there are thinking “Yes! That’s exactly how I would teach volume and area scale factors” – but just in case, here’s a selection of useful quotes from pupils in today’s lesson:
“A mouse has more outside than middle; a polar bear has more middle than outside”
“If this big pink cube was the polar bear, it would smash apart when you dropped it”
“Arrrrrr. So 1m³ isn’t the same as 100cm³? That knowledge is worth more than any gold!”