Constructor triangles - third box

The sensory game of the third box of constructor triangles is useful for the discovery and knowledge of plane geometry. Triangles are called constructors because each triangle is used to construct other figures. The box contains one equilateral triangle, two scalene right triangles, which are one half of the whole; three isosceles octangular triangles, each triangle is one third of the whole; four equilateral triangles, each one is one quarter of the whole. All triangles, with the exception of the equilateral, have a black line on some of their sides, which is a real guide to the exercise, as new geometric figures are formed by joining the lines on the two sides. The game encourages the discovery of geometric shapes and helps to understand that all plane shapes are made up of two or more triangles, helps to visually understand fractions, stimulates the ability to concentrate, refines the sensory perception of sight and helps in the knowledge, classification and memorisation of the various figures.