Calculating with Napier’s Bones

One of the children found a make-your-own guide for Napier’s Bones in Aquila Magazine so a small team set to work to make some.

John Napier shown in a feature in Aquila Magazine

 

They set to work on filling in the times tables

 

Producing a colourful set of Napier’s Bones or Rods

 

How to use the rods

 

Now for some test calculations

 

Explaining Napier’s Rods to the class – with the right answer for 9 x 123

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