The finished item can be used as a wall-hanging or afghan. We use ours for education purposes. It is a ‘100 square’. The squares across the top row represent the numbers 1 -10, the second row 11 - 20, and so on. The colours show which numbers, from 1 - 10, divide into the numbers represented by the squares. Each colour shows a different multiplication table. There are 10 colours that must be distinctly different from each other, plus a contrast colour for the lines between the squares.
Buy using the link at the top of this page
The original Counting Pane was bought by the Science Museum (London)
One of the photos shows a Tunisian crochet version made by Margaret O’Mara.
There is a press article here, from November 2010, about a school who created a slightly different version of Counting Pane.