Educational toy using coloured shapes - each piece is square or triangular and based on right angled isosceles triangle as module

摘要

The educational toy uses coloured shapes to build up a pattern or two-dimensional figure. the shapes are based on a right angled isosceles triangle, which forms a module. This module is extended to privode large and small triangular pieces and also provide suitable square and rectangular shapes. Both sides of each piece have the same colour, several colours being provided in the set. These may be fitted together to give the required figure or pattern, or a combination of both. At least five different shapes are supplied, enabling a wide range of figures and patterns to be formed.