Chapter 9 - Chapter 9 Guided Review I Definitions Hearing...

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Chapter 9: Guided Review I. Definitions Hearing impairment indicates a hearing loss that adversely affects educational performance and thereby makes the child eligible for special education A child who is deaf uses vision as the primary modality for learning and communication A deaf person may perceive some sounds through residual hearing Children who are hard of hearing are able to use their hearing to understand speech, generally with the help of a hearing aid Many persons who are deaf do not view hearing loss as a disability and consider the term hearing impairment. A. How We Hear Audition, the sense of hearing, is a complex and not completely understood process. The auricle funnels sound waves into the auditory canal Variations in sound pressure cause the eardrum to move in and out The vibrations of the bones of the middle ear transmit energy to the inner ear The inner ear is the most critical and complex part of the hearing apparatus. B. The Nature of Sound The intensity or loudness in sound is measured in decibels (dB) The frequency, or pitch, of sound is measured in cycles per second or hertz (Hz) II. Characteristics Students with hearing loss comprise an extremely heterogeneous group Levels of functioning are influenced by type and degree of hearing loss, the age oat onset, the attitudes of the child’s parents and siblings, opportunities to acquire a first language, and the presence or absence of other disabilities Generalizations about how deaf people are supposed to act and feel must be viewed with extreme caution A. English Literacy A child who is unable to hear the language of other people will not learn speech and language spontaneously Students with hearing loss have smaller vocabularies and difficulty with function words and verb phrases Many deaf students write sentences that are short, incomplete, or improperly arranged B. Speaking Atypical speech is common in many children who are deaf or hard of hearing. C. Academic Achievement
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Chapter 9 - Chapter 9 Guided Review I Definitions Hearing...

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