I loved this one as a kid in first grade because it just makes it so clear and obvious what the problem even is! I didn't need diagrams pretending to inflate a

I loved this one as a kid in first grade because it just makes it so clear and obvious what the problem even is! I didn't need diagrams pretending to inflate a balloon in a cylinder, or an animate gif warping from globe to flat. Just, oh of course, like an orange peel!