constructive triangles

Constructive Triangles are  Montessori sensorial material  in Montessori teachers  training curriculum, which are used to illustrate that each one plane geometric figures can be made from triangles. The constructive triangles are a sensorial fabric which might be beautiful, versatile, and useful. As with maximum Montessori substances observed in the Children’s House, the positive triangles invite endured repetition with the aid of using the kids and also are used in the Elementary environment. Heather Steinman, P3 Directress, welcomes us into her study room and explains the paintings of positive triangles.


The Triangular Box, shown above, consists of:

  • One gray equilateral triangle, the shape and size of the box
  • One green equilateral triangle bisected from the midpoint of the  base to the apex
  • One yellow equilateral triangle divided into three equal pieces by  lines drawn from each angle to the center of the triangle (along angle bisectors).
  • The constructive triangles are used to illustrate that every one aircraft geometric figures may be created from triangles. There are 5 boxes: 2 rectangular, 1 triangular, and 1 huge and 1 small hexagonal. Each field includes triangles of various sizes, shapes, and colors. With the exception of Rectangular Box 2, black suggestions are painted in specific positions at the triangles to assist the kid to assemble different figures. This must be recommended as an exploratory paintings with a purpose to offer a basis for later standards of equivalency, similarity, and congruency.