The Triangular Box of Colored Triangles the first box in the second set of 6 boxes. The constructive triangles sets are used in the elementary Montessori classroom to explore equivalency, congruency and similarity.

The direct aim of the material is:

• To develop the logical mathematical mind. 
• To indirectly prepare for the concept of equivalence and the derivation of area.
• To give the child practical experience in plane geometry.
• To indirectly prepare the child for work with fractions.
• To come to a point of consciousness that the triangles are called ‘constructive’ because they construct other rectilinear shapes.

Use this printable to make your own constructive triangles. There are a few printing options.

These triangles have been designed to match the original specifications. These triangles will be compatible with authentic Montessori constructive triangle materials.

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