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The Teaching Quantitative Skills in the Geosciences website has not been significantly updated since 2011. We are preserving the web pages here because they still contain useful ideas and content. But be aware that the site may have out of date information.
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NNN Column - Ratiocination

Initial Publication Date: December 10, 2009

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Eric Gaze

Ratiocination

Dr. Eric Gaze, Bowdoin College

A column devoted to ratios in all their guises: indices, coefficients, percentages, rates, scales, conversions, etc. Ratios are comparisons between the relative size of two quantities, a simple idea which – surprisingly – underlies much of the way we use numbers to communicate.