The material consists in a wooden tray with comfortable handles, divided into three compartments of different sizes containing the following: one 1000 cube, one 100 square, one 10 bar and one loose bead (with 3 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 QUANTITIES WITH TRAY
Work with this material starts from the age of four when the child has been working with the first psycho arithmetic materials and knows how to count to 10, knows the names and quantities associated to the numbers 1 to 9. The specific aim of this material, used in combination with the numeral tablets 1-1000 (MA26-A or MA26-B) is to get to know the quantities from 1 to 1000, presented in their hierarchy. The golden beads are particularly precious because generally they have a triple value: arithmetic, geometric and algebraic.