Importance of hearing sense
1)As one of our most important senses, the ability to hear enables us to connect to the world for various crucial reasons.
2)Hearing connects us to people enabling us to communicate in a way that none of our other senses can achieve.
3)Of the five human senses, the sense of hearing is one of the most powerful as it perceives music, speech and environmental sounds in a differentiated manner that surpasses the capabilities of other sensory organs.
4)The human ear is more sensitive and faster than the eye.
5)The outer ear protrudes away from the head and is shaped like a cup to direct sounds toward the tympanic membrane, which transmits vibrations to the inner ear through a series of small bones in the middle ear called the malleus, incus and stapes.
6)The inner ear, or cochlea, is a spiral-shaped chamber covered internally by nerve fibres that react to the vibrations and transmit impulses to the brain via the auditory nerve.
7)The inner ear has a vestibular system formed by three semi-circular canals that are approximately at right angles to each other and are responsible for the sense of balance and spatial orientation. 8)The inner ear has chambers filled with a viscous fluid and small particles (otoliths) containing calcium carbonate. The movement of these particles over small hair cells in the inner ear sends signals to the brain that are interpreted as motion and acceleration.
Effects of hearing impairment of educational process
1)Sense of hearing works as a potent tool for helping child in the task of language and speech acquisition. One who cannot hear thus may be subjected to a number of disadvantages in terms of his adequate adjustment, progress and education-oriented society of ours.
2)The long-term educational effects of a hearing loss can depend to a great extent on the age at which the loss occurred. Children with hearing and those with hearing losses (of normal or above average intelligence) follow the same pattern of cognitive development, including initial phases of language development such as babbling and the production of other sounds.
3) Further development may, however, proceed at a different rate in children with hearing loss. Between the ages of one and three, the average child’s vocabulary jumps from 200 words to 900 words.
4) The teacher should refrain from speaking with his or her back to the students. This is of particular importance when a child is using speech reading.
5) The student with a hearing disability should be able to see the teacher and peers from his or her vantage point in the classroom.
6) The student should receive visual aids to reinforce . Providing all students copies of a presentation outline can be helpful, especially for any student who has trouble taking notes or focusing on the important elements of a lecture or presentation.
7)To make communication easier for the student with a hearing impairment, teacher should ask a candidate to speak and wait for the hearing-disabled student to locate the speaker.
8)Successful classroom discussions and socialization rely on helping the sharp minded students students to understand how to communicate effectively and respectfully with a student who has a hearing disability.