Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...

Shoe sizes vary so much between brands that buying a new pair can feel like a crapshoot. Obviously, the best way to get a good fit is to just try them on, but that’s not always possible. If you have ...

The ongoing use of the imperial system in the United States, despite the global adoption of the metric system, raises intriguing questions about tradition, practicality, and cultural identity. This ...