hearing and hearing conservation a classroom curriculum for 4 th graders developed by longwood...
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Hearing and Hearing ConservationA classroom curriculum for 4th graders developed by Longwood University Communication Sciences and Disorders for the Farmville Lions.
(View “Notes” for information on materials and directions for presentation.)Contact Lissa Power-deFur, Ph.D., CCC-SLP ([email protected]) for information about content.
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A partnership between the Lions and Longwood University
We Serve
The Lions Goal is to serve all people around the world. Our main role is to help people see and hear better and assist those that have an illness called diabetes. We educate people about sight and hearing, provide eye glasses and hearing aids to those in need, and aid people with visual or hearing impairment.
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Hearing Conservation Cycle
turn down the volume or get away
from the noise
get your hearing tested
regularly
use hearing protection
devices that fit well
get educated
learn about different
loud noises
Cycle of hearing
conservation
Preventing damage to your hearing by protecting your ears
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What are our senses?
Hearing is one of our 5 senses!
What are some sounds that we hear every day?
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Parts of the Ear
Middle Ear
The middle ear is made up of the ear drum and three bones called the malleus (hammer), the incus (anvil), and the
stapes (stirrup).
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Parts of the Ear
Inner Ear
The inner ear is made up of the cochlea and the auditory nerve. The small hair cells inside the cochlea help us
hear the sounds.
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What is sound?
Sound travels in waves, called vibrations.
These vibrations hit the different parts of the ear and help us hear all the different sounds!
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Sound
Sound vibrates at different frequencies.
Frequency is how fast a sound wave vibrates through the air.
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Frequency of Sound
The vibrating frequency can be fast or slow.
Fast frequencies make high sounds.
Slow frequencies make low sounds.
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So How Do We Hear?
We hear when sound waves travel through our ear and vibrate the hair cells in our
cochlea.
How the ear works...
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Sounds can be Loud or Soft•Sounds are measured in Decibels (dB)
•Low dB = Quiet sound•High dB = Loud sound
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Sound Level Meter
•Measures the dB in the environment
Let’s see what different dB readings we can get!!
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Sounds can be Loud or Soft
•Sounds start to become harmful when they reach:
A. 30-35 dB C. 85-90 dBB. 55-60 dB D. 125-130 dB
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Hearing Loss
You can get a hearing loss when a part of your ear does not work the way that it
needs to for hearing all the sounds in the environment.
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Types of Hearing LossHearing loss can be:
Slight/Mild: have a hard time hearing soft sounds or whispering
Moderate: have a hard time hearing someone talking beside you
Severe: have a hard time hearing all talkingProfound: can only hear the loudest sounds
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What noises CAN’T we hear?
If you have a mild hearing loss, you couldn’t hear…
Whispers A fan blowing A clock ticking
If you have a moderate hearing loss, you couldn’t hear…
Normal conversation A dishwasher A clothes dryer
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What noises CAN’T we hear?
If you have a severe hearing loss, you couldn’t hear…
Almost all conversation Music A hand drill
If you have a profound hearing loss, you couldn’t hear…
A chainsaw A lawnmower A siren
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How Well Can You Take A Spelling Test When You Have A
Hearing LossThis is just for FUN! Listen carefully and spell the words the best you can on your
paper.
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How Can You Get A Hearing Loss?1. You can be born with it2. Illnesses like meningitis or ear infections3. Being hit in the head or sticking things in
your ears4. Listening to too many loud sounds
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You Might Have Hearing Loss if..•You ask people to repeat themselves
because you can’t hear them. •You can't hear someone who is 3 feet
away. •People talking near you sound fuzzy. •It is hard to hear after you leave a noisy
area. •You have pain or ringing in your ears
after listening to loud noise.
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Ear Infections (Otitis Media)• What is an ear infection?
•What does it look like when this happens?
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Noise Induced Hearing Loss
Loud noise can be very damaging to hearing
The hair cells in your ears become damaged and if they become damaged they don’t grow back.
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What noises are too loud?
•150 dB = fireworks at 3 feet•140 dB = guns/gun fire, jet engine•130 dB = jackhammer•120 dB = siren
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What noises are too loud?
•110 dB = loudest volume on iPods, chain saw
•106 dB = gas lawn mower, leaf blower•100 dB = hand drill
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What noises are too loud? •90 dB = subway, passing motorcycle•80–90 dB = blow-dryer, kitchen blender,
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What sounds are safe? •60 dB = typical conversation, dishwasher,
clothes dryer•50 dB = moderate rainfall•40 dB = quiet room•30 dB = whisper, quiet library
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How long can we listen to other sounds?
•85 dB (kitchen blender): 45 minutes•100 dB (hand drill): 1 minute and 30
seconds•115 dB (siren): 3 seconds•130 dB (jackhammer): less than 1 second•140 dB (guns/gun fire ): NO TIME
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Ear BudsListening to music with ear buds can be harmful to your ears.
Ear buds take the sound directly into your ear, causing more damage than regular headphones
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What can we do to protect our hearing?Avoid loud noises when possible.
Turn down the volume on your iPod.
If you know you will be around loud noises, wear hearing protection.
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Wear Earmuffs When Hunting!
A gunshot is a very loud sound!
Protect your ears by wearing earmuffs to prevent damage to your ears!
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Wear Earplugs When at a Concert!Concerts are also VERY loud! Try and stay
away from the speakers, and always wear earplugs to protect your hearing!
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Tips for Helping your Hearing
Remember:
E= Ear plugs or ear muffs
A= Avoid Loud Sounds
R= Reduce Volume
S= Shorten time in Noise
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Arm’s Length Rule
•Use the arm’s length rule! If you have to yell to be heard from 3 feet away, the noise is too loud.
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Hearing Screenings
Get your hearing checked regularly.Ask your parents and ask your doctor.Get your hearing checked if you think
you’ve been around a lot of noise!
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Sounds can be Loud or Soft
•Sounds start to become harmful when they reach:
A. 30-35 dB C. 85-90 dBB. 55-60 dB D. 125-130 dB
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Review
Today, we learned about…
The parts of the earFacts about soundHow sounds travelWhat sounds are too loudWhat sounds are safeHow to protect our hearingE-A-R-S
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Special Thanks To:Ms. Beth FittsMrs. Gloria Eiban Dr. Bill SchallDr. Lissa Power-deFurAllison ChaplinAndrew HockenberyThe Farmville Lions ClubPrince Edward Elementary SchoolLongwood University and the Longwood Center
for Communication Literacy and Learning
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ReferencesAmerican Speech Language Hearing Association. (2011).
Communication for a Lifetime. Retrieved from http://www.asha.org/public/
American Speech Language Hearing Association. (2011). Hearing and Balance. Retrieved from http://www.asha.org/public/hearing/
American Speech Language Hearing Association. (2010). Listen To Your Buds. Retrieved from http://www.listentoyourbuds.org/
Bauman, N.Ph.D. (2007, January 21). What are safe sound levels? Retrieved from http://hearinglosshelp.com/weblog/what-are-safe-sound-levels.php
Collins, S.H. (1989). Sound hearing or.. Hearing what you miss. Eugene, OR: Garlic Press.
Moyer, R., Daniel, L., Hackett, J., Prentice-Baptiste, H., Stryker, P., & Vasquez, J. (2004). Science. (Virginia ed). New York: Macmillian/McGraw-Hill.
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Images Retrieved From:Slide 1: http://technorati.com/technology/article/social-media-listening-tools-are-the/
Slide 2: Lions Club Logo: http://winnebago.govoffice.com/index.asp?Type=B_BASIC&SEC={8583B20E-C1B3-46AD-8B72-F35B4C2268F0}&DE={53FA5380-7235-4CCD-96AE-82E76A9E0763}
Slide 3: Longwood logo
Slide 6: http://www.infj.ulst.ac.uk/~pnic/HumanEar/Andy's%20Stuff/MScProject/workingcode_Local/EarChapter.html
Slide 7: http://www.polyvore.com/human_ear_clip_art_vector/thing?id=17604682#
Slide 8 & 9: http://picture-book.com/taxonomy/term/4232
Slide 10: see slides 7-9
Slide 11: http://robcubbon.com/how-to-design-sound-waves-in-illustrator/
Slide 14: http://www.kitchenandresidentialdesign.com/2011/04/further-proof-that-us-suburbia-is.html or http://www.mountainview.gov/city_hall/city_managers_office/child_and_youth_services/default.asp
Slide 21: http://www.vawatchdog.org/07/nf07/nfMAY07/nf050207-7.htm
Slide 25: http://www.computerclipart.com/computer_clipart_images/pencil_cartoon_character_student_gets_an_a_on_test_0521-1001-2611-1703.html
Slide 28:
Diagram: http://healthmetz.com/2011/06/04/methods-for-diagnosis-of-ear-infection.html
Healthy TM: http://www.florencechamber.com/business-directory/hearing-loss.shtml
Infected TM: http://www.webmd.com/cold-and-flu/ear-infection/slideshow-anatomy-of-an-ear-infection
Slide 29: http://drugster.info/ail/pathography/1127/
Slide 30: http://www.toonpool.com/cartoons/Noises_6788#
Slide 31
Gun: http://www.arthursclipart.org/weapons/weaponscol/shotgun.gif
Rocket: http://www.wpclipart.com/toys/assorted/assorted_2/rocket.png.html
Slide 32
iPod: http://www.amazon.com/Apple-classic-Black-Generation-MODEL/dp/B000JLKIHA
Lawn Mower: http://chestnuthilllocal.com/blog/2011/05/05/lawnmower-recycling-drive/
Slide 33: Motorcycle: http://freeclipartpicture.blogspot.com/2010/04/free-motorcycle-clipart-pictures.html
Slide 34: Kids talking: http://trifitt.nl/talking-clipart-free&page=3
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Images Retrieved FromSlide 35:
Pistol: http://kentuckystatepolice.org/conf_weapons/index.htm
Ambulance: http://www.clipartof.com/gallery/clipart/ambulance_driver.html
Hand drill: http://www.sencan-tools.com/Electric-Hand-Drill-36.html
Blender: http://latinosdedallas.com/site/hello-world/
Slide 36:
Ear Buds: http://osx-e.org/ipod-nano-accessories/
Headphones: http://www.gizmowatch.com/entry/nokia-to-extend-earphone-series-with-stereo-hs-81and-headphones-hs-61/
Slide 37:
Loud Noise Sign: http://www.worldmarketmedia.com/779/section.aspx/1519/hearing-loss-concern-amex-ear
Earplugs: http://www.sleepearmuffs.com/Foam-Ear-Plugs.html
Slide 38: Volume Meter: http://digitalspyeye.com/jaws-now-terrorizes-the-beaches-on-the-virtual-iphone-ipod-touch/
Slide 39:
Earplugs: http://taobaofieldguide.com/cool-stuff-to-buy-on-taobao/china-is-noisy-buy-earplugs
Earmuffs: http://www.clearhearingtx.net/page5.html
Slide 40:
Hunter: http://www.sportsmanguncentre.co.uk/news/BRAND+NEW+Deerhunter+Stock+Arriving+soon/
Earmuffs: http://jainsonssafety.tradeindia.com/Exporters_Suppliers/Exporter13563.194836/Safety-Ear-Muffs.html
Slide 41:
Justin Bieber: http://www.wallpaperhd.org/wallpaper/759/Justin-Bieber-concert-widescreen.html
Earplugs: http://www.sodahead.com/living/do-you-wear-ear-plugs-at-concerts/question-1937319/
Slide 42: Lion: http://oz.plymouth.edu/~jwcampo/fun%20facts%20about%20lions.html
Slide 43: http://www.123rf.com/clipart-vector/lion.html
Slide 44: http://faculty.mdc.edu/jmcnair/EDG2701%20All%20Classes/New%20Essay%209a1.htm
Slide 45:
Audiometer: http://www.angelusmedical.com/AudiometersSpirometers.htm
Screening: http://www.entkent.com/glue-ear-grommets-adenoidsmod.html
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