Special education means specially designed instruction, at no cost to parents or guardians, to meet the unique needs of a child with a disability, including classroom instruction, instruction in physical education, home instruction, and instruction in hospitals and institutions. Special education includes speech-language pathology, occupational therapy, and physical therapy if the speech-language pathology or occupational or physical therapy consists of specially designed instruction, at no cost to the parents or guardians, to meet the unique needs of a child with a disability.