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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 constructive triangles enable the composition of geometric figures and are therefore a direct preparation for the geometry. The material consists of five boxes with different triangles; one box is triangular, one large and one small box are hexagonal and two others are rectangular. Different triangles have one, two or three black side lines, which are used to support the assembly.