Theoretical physicist, Richard Feynman, is often quoted as saying,
"You can know the name of a bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird... So let's look at the bird and see what it's doing -- that's what counts. I learned very early the difference between knowing the name of something and knowing something."
Of course, the truth of the statement is a little more subtle than the quote implies, and in the 1970's interview below, he did admit that knowing the name of things can be handy if you actually want to talk to people.
I've said it before, I'm sure, and I'm sure, given the opportunity, I'll say it again - the best education you can give your children is to teach them to identify everything they see.
Work alone, in front of your children, reading details of what you find, to them.
Work together with your children, teaching them how to look-up and find specific details.
Let your children flounder in the sea of information, picking out the specific details they need to find their way.
Knowing the name of something is not the same as knowing about it. But, to find the name of something - the correct name - you've got to know, observe, compare, sort through details, persevere, and stretch your bank of knowledge in many different subject areas at once.
Want to make the world your classroom? Then, take a look around, and try to identify what you see in front of you. It's not easy, and you won't always get it right - but you'll learn things you never expected to know (and you might even be able to talk to people about them).