Inspired by Jane Russell’s place value slider (see below), this slider allows for easy conversion of metric units. I printed the sliders on A3 paper so there would be enough to pull from both sides. I used different colours for weight, distance and capacity.
An illustrated example shows how to use the sliders. Sets of 4 sliders are on different pages to make it easier to print on different colour paper. A photograph of the finsihed slider i salso availalbe below