This document discusses different types of intellectually exceptional children who require special education programs. It defines underachieving children as those who achieve academically below expected levels for their age. Mentally retarded children are described as having below average mental ability. Creative children are those who explore new ideas and make novel observations. Learning disabled children have significant difficulties acquiring and using learning and language skills. Gifted children exhibit superior general intelligence or abilities in specific areas. Physically exceptional children include those who are blind, have orthopedic handicaps, are deaf, or have speech defects.