Peek-a-boo ... learning is fun

I've been reading up on theories of intellectual development. Hmmm. As with the way with these things, ones mind wanders.

So at one point I found myself reading a description of part of Piaget's thinking about children's development, and I realised why peek-a-boo makes sense. But we all play peek-a-boo with babies ... we don't need to know that there's a theory. So why do we? Is it because it makes the baby laugh? And why does the baby laugh? Is it partly so that we'll play with them? It makes all sorts of sense. Learning is fun!

How quickly we can forget, though.