Play-Doh (Alternatively, you can prepare homemade salt dough using plain flour, table salt, water and other optional ingredients; see the "Preparation" section for details. Optional ingredients ...

The Rubik's Cube dates to my childhood, when it was for leaving on a desk to be fiddled with — or, for a select few strange birds, for actually solving, sometimes very quickly. At that time, knowing ...

“Education is a natural process carried out by the child and is not acquired by listening to words but by experiences in the environment.” — Dr. Maria Montessori I believe the first thing that draws ...

Ever since the Rubik’s Cube was released, it’s taunted almost a half billion tinkerers who think they can crack its confounding mysteries, only to be stymied by its maddening secrets. Now, it’s time ...

The cube is the one of the most basic volumes out there. It’s something we instantly understand as a space, and a building block that can be used to create more complex structures. Chamber, a design ...

Jeff Smith's Math Puzzle for December 5, 2025 - Waiting for the hake to bite, musing about that ice cube. The post Math ...