Visualization of deaf and hard hearing students in learning mathematics: A literature review.

Deaf and hard hearing are a condition of someone who has a terrible hearing loss or less severe of hearing loss due to medical condition or sociological and cultural condition. Because of their condition, they get a lack of communication that it impacts to their performance in mathematics. Many researches found that deaf students are visualizer. The aim of this study is to review result study of visualization power of deaf students at middle school in Indonesia. Referring to nine main literatures, It concludes that in Indonesia, deaf middle school students prefer visualization to text in learning mathematics, a specific lesson design is needed that is adjusted to characteristics of deaf and hard hearing students, and deaf and hard hearing students are able to be developed both competencies and thinking process by using appropriate media and technology for learning mathematics. [ABSTRACT FROM AUTHOR]