3D shapes aren’t just geometry—they’re a gateway to building spatial reasoning, problem-solving, and early STEM confidence.

Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they ...

The net of a 3D shape is what it looks like if it is opened out flat. There are many types of nets for the different 3D shapes. A net is made from polygons that can be folded and joined to make a ...

If you’re missing the mark when creating 3D shapes in Microsoft PowerPoint, you might be skipping a step. Learn how to apply simple 3D effects by creating a few arrows. When you want to visually imply ...