The mathematics to the range of the blind

摘要

"Mathematics in range of the blind.Refers to an instrument composed of a set of tools that make the visually impaired to overcome the difficulty of entering the study and understanding of the exact sciences.For not teaching material concrete was prevented for centuries.It is fascinating to the idea of identifying the calculations through the use of tangible objects of utility virtually universal for work in their performances with the two systems Braille and Hindu aru00e1biCo, used in the whole world.