What shape is the moon?

So many times, I'm tempted to "teach" Jacob, and I think he's rebuffing me. What he's saying is, "I'll learn it when I'm ready." And he does, in ways I don't even notice at the time. Ever since he learned his shapes, we've been playing a game called, What Shape is the Moon Tonight? The rules are simple: we find the moon, then say what shape it is. We even do the weird shapes like "gibbous"--I figure, to a two-year-old, "gibbous" is no more unusual a word than "crescent". Sometimes, I think he's just not interested, but then he goes to the planetarium with his mama, and in the middle of a presentation, shouts to the audience, "Mama, look! It's a gibbous moon!"

They're always looking.