Napier's Local Arithmetic Board | STEM Montessori Math Learning Tool Roman game like the hands of a

like the hands of a clock

This lawyer puzzle has 17 precision cut laser and engraved hardwood pieces that must be inserted into the frame

This is our own copyrighted design made at our Florida shop

and some never finish

Napier's Local Arithmetic Board | STEM Montessori Math Learning Tool Roman game like the hands of aJohn Napier was a brilliant Scottish mathematician who lived from 1550 to 1617. He developed a number of methods to simplify mathematic operations most notably logarithms but also some calculation tools like Napiers Bones and this Local Arithmetic Board. This board will allow the calculation of 2 numbers, though each number must be less than 512. It's an amazing thing to use this board and get a sense of the history as well as the mathematics behind