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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

Featured PUMAS Example

Dr. Smith vs. The Lawyer by Joseph L. Ruby
A lawyer's use of some very simple science and math. The facts are true, although simplified; the company names have been changed. Acme Enameling Company operated a cast-iron foundry and enameling plant, where it made bathtubs and sinks for twenty-seven years. It dumped factory wastes on vacant property behind the plant. Zenith Construction Company then bought the property and used it as a construction waste landfill. Years later, Zenith decided to develop the property as an office park. In preliminary testing, Zenith discovered that the property was contaminated with lead. The State will not allow any development until the lead is removed to permissible levels. Zenith sues Acme, claiming that Acme's factory wastes are the source of the lead, and demanding that Acme pay $26 million to clean up the problem. Acme says that almost all its wastes were clean sand and foundry wastes, containing no lead. Acme retains an expert, Dr. Smith, who submits a report saying that the levels of lead contamination on the site could not have come from Acme. He says that the landfill must be the source of the lead contamination.
(view this example)

View the Examples

There are currently 90 examples in the PUMAS Collection.
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We are always looking for neat examples of Practical Uses of Math And Science.
Please contribute!