Students (young and older) respond to instruction in the way that is expected of them. If taught as if they are slow, students will conform to that perception. Imagine what would happen if we treated all students, from the earliest years through their post-secondary studies, as if there were geniuses inside, simply waiting for recognition.
Sure, they are smart, but all children are smart. They are talented, but all children have talents. Nope, my children are not any more special than any other children in the city of Milwaukee. Only difference is my children are privileged and lucky. They have had opportunities that only privilege can buy.
Gifted children are, by definition, "Children who give evidence of high performance capability in areas such as intellectual, creative, artistic, leadership capacity, or specific academic fields, and who require services or activities not ordinarily provided by the school in order to fully develop such capabilities."