The bibliographical research is developed on the basis of material already elaborated, constituted mainly of scientific books, articles. Our study perpassa the estimated theoreticians elencados during the research, for, from this to search answers that assist in one practical still more significant professor. 3. The Deficient Intellectual Deficient the mental one corresponds to a functioning below of measured, with some relative limitations the two or more areas in the abilities that have that to be adapted for the same ones: communication, auto care, social, autonomy, health, leisure, education and mainly with aid of the family. The definition of mental deficiency more was spread out and accepted to the one of the American Association of Mental Deficiency of 1992, that it represented a great conceptual advance. The way as each one faces the proper requirements of the life, it in accordance with puts in practical personal independence its age, and with the sociocultural experiences in the context of which this inserted one. Carrying, some factors exist that suffer with this influence amongst them: staffs, social, motivation, education, training, as well as its practical necessities and its general conditions.
The intellectual deficiency is resulted of the degree of functional comprometimento and not it classification only of the QI, which is light, moderate, severe or deep retardation, almost always is an alteration in the cerebral structure, provoked for genetic factors, in the uterine life. The majority of the children with intellectual deficiency obtains to learn more needs in rule, of time and supports of the family and the pertaining to school community so that they come to get success. Ballone (2003) always affirms that the important one is to know where area the person with intellectual deficiency needs support more than, observing qualitative criteria of evaluation, whom they consider more the person under the point of view of the chances and autonomy, of what its classification (QI).