Deaf Education PRAXIS 5272 Latest Version Graded A

Deaf Education PRAXIS 5272 Latest Version Graded A Stages of development in Children Sensorimotor, Preoperational, Concrete, Formal Sensorimotor Stage (Piaget) 0-2. Sensations and perceptions. Master object permanence. Emphasis on the senses: touch, vision, motor (sucking and grasping) preoperational stage (Piaget) 2-7. Motor skills are acquired; egocentrism is strong but begins to decline; no logical thinking yet; most rapid period of development concrete operational stage (Piaget) 7-12. The child develops the ability to understand constant factors in the environment, rules, and higher-order symbolic systems. Conservation is developed here. formal operational stage (Piaget) 12-adulthood. Children develop the ability to think logically in the abstract. They develop deductive reasoning skills and are capable of achieving post-conventional moral reasoning. Lyrnx voice box hard palate roof of the mouth inner ear contains cochlea, semicircular canals, and vestibular sacs outer ear pinna and auditory canal middle ear the chamber between the eardrum and cochlea containing three tiny bones (hammer, anvil, and stirrup) that concentrate the vibrations of the eardrum on the cochlea's oval window velum the soft area toward the rear of the roof of the mouth Degrees of Hearing Loss normal, slight, mild, moderate, moderately severe, severe, profound slight hearing loss 16-25 dB -May miss up to 10% of speech mild hearing loss 26-40 dB (can't understand conversations clearly) -may miss up to 50% of speech -may be labeled "behavior problem" moderate hearing loss 41-55 dB (delayed speech and language acquisition) -may miss 50-100% of speech -compromised communication moderately severe hearing loss 56-70 dB -100% of normal volume speech lost -delayed speech severe hearing loss 71-90 dB -loud voices only heard within 12 inches of ear profound hearing loss 91+ dBHL -Sound vibrations felt rather than heard sensorinueral hearing loss hearing loss caused by damage to the cochlea's receptor cells or to the auditory nerves; also called nerve deafness Conductive hearing loss occurs when sound waves are prevented from passing from the air to the fluid-filled inner ear mixed hearing loss combination of conductive and sensorineural types in same ear Deaf Etiology Heredity Consanguinity (in family), Marriages of the Deaf, Waardenberg Syndrome Deaf Etiology Disease Rubella, encephalitis, bacterial infection, meningitis, CMV, typhoid fever, RH incompatible Deaf Etiology General Disease, Heredity, Accidents, Prematurity, Noise bilabial both lips are together -- p, b, m labiodental lips and teeth (f,v)