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Undusting Napier's Bones

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Visit this site: http://www.cee.hw.ac.uk/~greg/calculators/napier/
Author:Alexandros Diploudis; Heriot-Watt University, UK
Description: Biographical information about the Scottish mathematician John Napier, generally considered the inventor of logarithms, with a Java simulation of Napier's bones, a method for performing arithmetic operations by the manipulation of rods (called "bones" because they were often constituted from bones and printed with digits). Napier's rods essentially rendered the complex processes of multiplication and division into the comparatively simple tasks of addition and subtraction. Links to relevant Web sites are included.
Levels: Elementary, Middle School (6-8), High School (9-12)
Languages: English
Resource Types: Calculators, Manipulatives, Web Interactive/Java
Math Topics: Basic Operations, History and Biography

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