A wooden frame with stand has seven horizontal stainless steel wires. On the left side of the frame there are grey, black and white PMMA insets with the values 1, 10, 100, 1000, 10.000, 100,000, 1.000.000 engraved in red on them. Each wire has 10 beads in the hierarchical colours: green for the units, thousands and millions, blue for the tens and tens of hundreds, and red for the hundreds and hundreds of hundreds. 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 wooden parts have a UNI EN 71-3 finishing.
BIG BEAD FRAME
The big bead frame is to be used after the small one (MA12). The goal is to accompany the child towards abstraction: from the analysis and operations with real quantities to those with positional numeration, according to the decimal system. Whereas the small frame allows to work with numbers up to the thousands, this one goes up to the millions.