degree. He can likewise attain a primary grade level of education if he receives effective instruction. 3. Educable Group. This group's I.Q. ranges from about 50 to about 75, and the intellectual development is approximately 1/2 to 3/4 of that expected of a normal child of the same chronological age. The degree of success or accomplishment that they will reach in life depends very much on the quality and type of education they receive, as well as on the treatment at home and in the community. Many of the educable retardates may reach 5th or 6th grade educational level and can develop occupational skills which may result in partial or complete economic independence in adulthood. 4. Borderline or Low Normal Group. This is the highest group of mentally retarded, with I.Q.s from about 75 to about 89. The members of this classification are only slightly retarded and they can usually get by in regular classes if they receive some extra help, guidance and consideration. They have to spend much more time with their studies than do most children in order to pass. Those who cannot make it are usually handicapped by one or more other conditions aside from that of intelligence. Article 170. Physically Handicapped Children. - Physically handicapped children are those who are crippled, deaf-mute, blind, or otherwise defective which restricts their means of action on communication with others. Article 171. Emotionally Disturbed Children. - Emotionally disturbed children are those who, although not afflicted with insanity or mental defect, are unable to maintain normal social relations with others and the community in general due to emotional problems or complexes. Article 172. Mentally Ill Children. - Mentally ill children are those with any behavioral disorder, whether functional or organic, which is of such a degree of severity as to require professional help or hospitalization. Article 173. Admission of Disabled Children. - The Department of Social Welfare, upon the application of the parents or guardians and the recommendation of any reputable diagnostic center or clinic, shall refer and/or admit disabled children to any public or private institution providing the proper care, training and rehabilitation. "Disabled children" as used in this Chapter shall include mentally retarded, physically handicapped, emotionally disturbed, and severe mentally ill children. Article 174. Training and Opportunities for Disabled Children. - Specialized educational services shall be expanded and improved to provide appropriate opportunities for disabled children. Vocational rehabilitation and manpower conservation agencies shall train disabled children for specialized types of jobs, services and business which could be learned only by them and shall help provide opportunities for their future occupational placement: That the agencies and organizations engaged in programs and services for the disabled need not be limited to minors. Persons of legal age may be admitted whenever facilities are available for them. Article 175. Planning of Programs and Services. - Selected pilot demonstration projects needed by the disabled children shall be developed and shall be the basis for planning expanded programs and services throughout the nation. There shall be established area centers designed to bring together an aggregate of services to serve all ages of the disabled within a specified geographical area.