This material can be used from the age of 4 onwards when the child knows the the golden bar of tens, the numbers 1 to 10 and the coloured bead bars. To be used with the positive snake game, first and second level. The goal of this material is to facilitate the construction of the mental calculating mechanism by using the 10.
A beech wood frame houses 10 rows of stainless steel sticks with 10 beads each, made of wood, coloured in the appropriate hierarchical colours. The frame of the frame shows numbers and units of measurement. Dimensions: 41.5 x 25 cm
Manufacturer: Montessori BF (Trento, Italy)