Napier's Bones | Handmade Wooden Math STEM Teaching Aid homeschool math game 3 Muskateers

3 Muskateers

" Whether you're looking for a new addition to your game room

Creative Crafthouse can laser engrave a name or a short message on the side of the base

Dimensions: 16

and stocking stuffers

Napier's Bones | Handmade Wooden Math STEM Teaching Aid homeschool math game 3 MuskateersNapier's Bones is a handcrafted wooden reproduction of the multiplication aid invented by John Napier in 1617. Before calculators, students and tradespeople used the marked rods to multiply, divide, and find roots. The base set ships with two complete sets of rods (0 9), a storage base, a wood cover, and printed instructions with worked examples. Optional square root or cube root bone add ons at checkout. Includes: storage base, 2 sets of rods 0 9,