The material consists in a wooden tray with comfortable handles, divided into three compartments of different sizes containing the following: one 1000 cube, nine100 squares, nine 10 bars and nine loose beads (with 5 spare ones) placed on a special tablet with hole. The beads have a diameter of 8 mm and are micro lathed and varnished in Italy and thread on stainless steel wire by hand. The tray has a UNI EN 71-3 finishing.
INTRODUCTION TO THE DECIMAL SYSTEM
This material can be used from the age of four, when the child has already practiced with the first psycho arithmetic materials and knows how to count to 10 and is confident with the names and quantities associated to the numbers 1 to 9. The specific aim of this material, used in combination with the MA27-A 1-1000 number cards, is for the child to get acquainted with the decimal system. The golden beads are particularly precious because generally they have a triple value: arithmetic, geometric and algebraic.