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.
Michael Duffy. A book that gives parents an insight into the Montessori math materials. The benefi ts, how they affect the growth of the child's brain and how they prepare him for the future. Includes photos of children using the materials.