This material is used to represent in geometric form the Hierarchy of numbers for;1, 10 100,1000,10.000, 100,000 and 1,000,000. The precise nature of these materialsmakes it possible to compare by size the decimal categories, visualize, through the colour coded system the concept of decimal value and the families of number. A wooden tray for presentation of 1, 10,100 and 1000 is included.
We have 1 unit that has slight marks on it and is for sale at the special price when gone it goes back to the normal price.
Made by Nienhuis
