A full collection of the five Constructive Triangle Boxes - Rectangular Box “A”, Rectangular Box “B”, Triangular Box, Small Hexagonal Box and Large Hexagonal Box. Each box features a set of colour-coded triangles that give the child a sensorial impression of fundamental two-dimensional geometry, including the foundational role of the triangle in building more complex shapes. Developmentally appropriate for ages 4 years + Safety rated for ages 3 years + Click here for the AMI-Certified Constructive Triangles. Click here to view our entire collection of Casa/Primary (3 to 6 Years) Montessori materials Click here to view our entire collection of Casa/Primary (3 to 6 Years) Sensorial materials Click here to view our entire collection of Elementary (6 to 12 Years) Math materials Click here to view our Montessori Sensorial Shelf
