What are you talking about? I have a perfect grasp of these things. As I said, half is in the shape area. You must've missed that.
Also, that IS his mistake, it's literally the first thing in the post. And this stuff isn't hard or hard to teach _at all_ has long as you're at least 5.
Also, that IS his mistake, it's literally the first thing in the post. And this stuff isn't hard or hard to teach _at all_ has long as you're at least 5.