Lepe founded the world's first school for the deaf in Paris, which marked the emergence of special education. Lepe is known as the originator of sign language teaching system.
Special education uses special equipment, methods and measures to educate special objects. Special objects can be divided into narrow sense and broad sense. In a narrow sense, it refers to people with physical and mental defects, that is, blind, deaf, dumb, mentally retarded or physically disabled, the sick and the weak; Broadly speaking, it refers to abnormal children, problem children and mentally ill children.