Index Concept of Exceptionality in Special Education Meaning and Scope of Special Education Basic principles of Special Education Person with Disability Act, 1995 Mental Retardation Definition and Types Characteristics of Mental retardation Education of Mentally retarded children Visual Impairment Definition Types and Classification Incidence and Causes of Visual Impairment What are Some Educational Considerations For Learners With Visual Impairments? Why Hearing Is The Most Important Sense Level of Hearing Loss For Disability Teaching Strategies For Hearing Impaired Students