Mathematicians’ Favorite Shapes Hold the Key to Big Mathematical Mysteries ...

The May issue of Scientific American takes you on a deep-sea mining mission, explores dark comets and examines an invisible ...

The other four faces are all triangles. The shapes with 8 vertices are the cube and the cuboid. The cube has 6 faces all the same, but the cuboid has different faces.

The shape of a structure affects how strong it is. Rectangles, arches, and triangles are the most common shapes used to build big structures. What happens when you push the side of a rectangle?

With your partner, build a triangle and a square from the straws ... Compare the stability of the shapes. Stand each shape up and press down on the top corner. What happens? How much does each ...

Explain that size is another property of an object. The objects can also be sorted by shape, according to whether they are a square, triangle, or circle. Explain that shape is also a property of an ...