January 19, 2005
Alice does maths

I am very busy today, but Alice has a post up about arithmetic, and about maths, one of the points being that the teaching of the forner can often screw up the teaching of the latter. For her, the big breakthrough in her teaching came when she made an abacus with paper clips, thereby answering the question: why?

Abacus.gif

Proper abacus picture, here, and this:

The abacus was the first known machine developed to help perform mathematical computations. It is thought to have originated between 600 and 500 BC, either in China or Egypt. Round beads, usually made of wood, were slid back and forth on rods or wire to perform addition and subtraction. As an indication of its practicality, the abacus is still used in many eastern cultures today. The abacus, an ancient product of the middle east, is really a full blown hand-held decimal calculator!

Ten out of ten.

Posted by Brian Micklethwait at 01:12 PM
Category: Maths