Thanks to Joel Chan for becoming the first student to add a contribution to Mr Heald's Facebook page.
Obviously if you're on a school computer you won't be able to see it, in which case the link he shared is here:
Is it fair, though, to use such images as evidence of 'illiterate Britain', I wonder? Or is that merely a humorous turn of phrase?
Can you find any (possible) errors in the explanations accompanying each image?