**PUMAS** (**poo'** • mas) -- is a collection of brief examples showing how math and science topics taught in K-12 classes can be used in interesting settings, including every day life.

*The examples are written primarily by scientists, engineers, and other content experts having practical experience with the material. They are aimed mainly at classroom teachers, and are available to all interested parties via the PUMAS web site.*

*Our goal is to capture, for the benefit of pre-college education, the flavor of the vast experience that working scientists have with interesting and practical uses of math and science.*

*- Ralph Kahn
Pumas Editor and Founder*

**Geometric Addition + Logarithms = Geometric Multiplication by Elliott Ostler**

Mathematicians often argue that anything which can be represented numerically or algebraically can also be represented geometrically. This is perhaps true even to the extent that simple numeric calculations can be demonstrated geometrically. The following example illustrates one such geometric process of addition.

(view this example)

There are currently 85 examples in the PUMAS Collection.

View the full listing, organized by Example title.

We are always looking for neat examples of Practical Uses of Math And Science.

Please contribute!