 
           
           
           
          Please note:
Montessori materials are NOT toys, but educational materials. Proper use requires appropriate training.
Montessori materials may contain small, rough, sharp, or other elements that could cause injury or damage if used improperly.
It may therefore only be used by children under the supervision of appropriately trained persons and in an appropriate environment.
The material consists of wooden squares and cubes with the basic numbers from 1 to 9. The child can use them to bring a smaller cube, for example the five-cube, to the mass of the eight-cube with the help of five- and three-squares and the three-cube. With advanced practice, this work can be represented and calculated as (5 + 3) 3. This material, like the other materials in this group, offers an excellent opportunity to combine arithmetic, geometry and algebra.