Geometry & Measurement Workbooks introduce important foundational math concepts gradually, which allows children to feel confident and eager to learn more. Our

For seven years, Paul Lockhart’s A Mathematician’s Lament enjoyed a samizdat-style popularity in the mathematics underground, before demand prompted its 200

There are millions of things to measure . . . and almost as many ways to measure them! Marvelosissimo the Mathematical Magician is back -- and ready to explore

Lisa's homework assignment is to measure something. The fun begins when she decides to measure her dog, Penny.

A multidisciplinary reference of engineering measurement tools, techniques, and applications Volume 1 "When you can measure what you are speaking about, and exp