A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...

(cheerful music) (electronic gadgets whirring and ringing) - [Children] Math Mights! Welcome, 2nd grade Math Mights. My name is Mrs. McCartney. I'm so excited that you've joined us today for our show.

Work on making 10 and build new shapes from smaller shapes. Join Mrs. Markavich for a number talk with D.C. as we work on decomposing and composing to make 10. We'll build a new shape from smaller ...

When most people think of shapes, they imagine a triangle, a rectangle, or maybe even a fancier- sounding rhombus or trapezoid. But to mathematicians, shapes encompass a vast universe of surprising ...

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 ...

Mathematicians are creating their own version of the periodic table that will provide a vast directory of all the possible shapes in the universe across three, four and five dimensions, linking shapes ...

What if instead of defining a mesh as a series of vertices and edges in a 3D space, you could describe it as a single function? The easiest function would return the signed distance to the closest ...

Jenny Quinn travels with math in her backpack. She unpacks it piece by piece: bright, 3D-printed shapes that click together… ...

David Smith, a retired print technician from the north of England, was pursuing his hobby of looking for interesting shapes when he stumbled onto one unlike any other in November. When Smith shared ...