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 ...

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 ...