Napier's Bones Set

Napier's Bones Set

# 051536

Our Price: $34.50
Retail: $38.00
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Item #: 051536
Grades: PK-AD

Product Description:

Not all calculators are created equally! Invented in the early 1600s by John Napier, this manually operated calculating device revolutionized multiplication using rods and a lattice frame. While the original Napier’s Bones sets were made from bone, this reproduction is made of quality wood components. Base measures 7” x 7” and makes a perfect cover for the lattice frame and rods. Rods are made from 1/8” thick alder and are laser engraved. Two sets of rods are included (0-9) and measure 6” long. A brief background and instructions for use are included. A great way to challenge your math students, while providing a fun look at primitive technology! ~Deanne

Publisher Description:

Napier's Bones was designed in 1617 by John Napier a Scottish Mathematician. In its day it was a wonderous device that simplified complex multiplication and other math processes such as long division and square roots. It was essentially the first calculator and was in common use for nearly 3 centuries.

Set has 2 full sets of rods #0-9 (20 rods in total) that can be both used and stored in the attractive base with cover. Rods are made from 1/8 thick alder and are deeply laser engraved. The base is a 7" x 7" square and the rods are each 6" long.

Primary Subject
Mathematics
Grade Start
PK
Grade End
AD
Format
Other
Brand Name
Creative Crafthouse
Weight
0.95 (lbs.)
Dimensions
7.62" x 7.62" x 0.75"
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Why did you choose this?
Rainbow Resource Center Store
Times tables math activity - fun and engaging and hands-on
Emily G on Jan 27, 2023
Best price. Authentic appeareance.
Carrie T on Mar 3, 2022
Times tables math activity - fun and engaging and hands-on
Emily G on Jan 27, 2023
My father had a home made set of these - I want to see what I remembered
Henry K on Aug 2, 2022
Best price. Authentic appeareance.
Carrie T on Mar 3, 2022
Need it for teaching math history.
Kalyani M on Nov 21, 2021
i am intrigued. i saw this item and was intrigued. i googled videos on it and was amazed. this is pretty neat and i realized it can also be used with helping older students (middle school, high school, and university) to start to show concrete representation for all the abstract laws and universalities in operational mathematics (how and why all the rods are known to always work in their computations).
Bonnie R on Mar 8, 2021
My father had a home made set of these - I want to see what I remembered
Henry K on Aug 2, 2022
Need it for teaching math history.
Kalyani M on Nov 21, 2021
5.0 / 5.0
1 Review
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Rated 5 out of 5
Thank you
Thank you for producing this historic device.
May 22, 2022
Purchased
1 year ago

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