There are many types of assistive technology that help those who are hard of hearing. Cochlear implants are a type of assistive technology to help those hard of hearing be able to hear in their everyday lives. There are also ALDs that assist with hearing everyday and allow for better hearing by minimizing the background noise. There is also an FM system that allows the teacher to use a microphone to speak directly to those who have the speak through FM waves. There is also an infared system of this technology as well. There is also a sound field amplification system that assists with the entire room hearing the teacher, but this is not useful for group work. There are ways to see this in action in a show called Switched at Birth. Many of the technologies mentioned in this chapter are presented in the show since some of the main characters are deaf.
http://abcfamily.go.com/shows/switched-at-birth
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