Other disabilities include hearing, visual, or orthopedic impairments; autism; (1) _______ traumatic brain injury. An increasing number of children in the United States are identified as having attention-deficit hyperactivity disorder (ADHD) and (2) _______ special education services. Many schools in the United States provide special education services (3) _______ gifted children, although federal law does not mandate these services. Gifted children demonstrate (4) _______ high abilities in intellectual, creative, academic, leadership, or artistic areas. Estimates of the gifted (5) _______ in the United States range from 3 to 5 percent of all schoolchildren.

(3) ....................

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