Hearing impairment, deafness, or hearing loss refers to the total or partial inability to hear sounds. Children who are totally deaf cannot hear,  therefore it is difficult for them to acquire and use oral language to learn at school. Their natural language is sign language and it should be used to communicate and teach these children. 

Usually, deaf children with normal intelligence can learn in the regular classroom together with their hearing peers as long as they are given appropriate supports. These are several and of various types. They can help to ensure academic success for a deaf child. These include:

Appropriate communication techniques. Some deaf children can hear a little and may be able to benefit from technologies such as a hearing aid that amplifies sound to a level that the child can hear. Therefore such children can make use of hearing to learn in a general classroom.A completely deaf child has no residual hearing, so the use of spoken language—even with technologies to boost sound—will not be effective. Kenyan sign language is the most common means for communication. The classroom teacher therefore needs to be highly proficient in the language to enable the child follow classroom instruction.