But today we're going to look for shapes. Ibrahim: We want to ask Angela to explain to us the difference between 2D and 3D shapes. Angela: A flat shape, like the circle on this piece of wood is 2D ...

You can get pyramids with different shaped bases. Triangles, pentagons, hexagons, any shape. And a circle becomes a sphere with just one large, curved face, like a ball. Perfect for, uh ...