Your Vision & Hearing

HPE Lesson Plans - Health - KHE, 1HE, 2HE, 3HE, 4HE, 5HE

Safety | Mental, Social & Emotional Health | Substance Abuse & Disease Prevention | Growing Up Healthy

4TH GRADE VIRTUAL HEALTH

L23: You Are Growing Cell by Cell| L24: Your Brain & Nervous System: The Control Center for Growth | L25: Your Skin & Its Care | L26: Your Teeth & Their Care | L27: Your Vision & Hearing | L28: Your Posture| L29: Your Physical Fitness | L30: Nutrients & Your Digestive System | L31: Food and the Nutrients It Contains | L32: Using MyPlate | EXTRA: Understanding a Food Label | EXTRA: Preparing Food Safely

Growing Up Healthy

Your Vision & Hearing

See below for the following:

Standard(s), Essential Question(s), Big Idea(s)

LEARNING TARGET / SUCCESS CRITERIA

I will know, identify, and explain the causes of common vision and hearing problems.

I will know, describe, and demonstrate how to take good care of eyes and ears.

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PRE-INSTRUCTIONAL ACTIVITY

Vocabulary

pupil - a drug used to treat or cure a health problem

lens - a substance other than food that changes the way the body works (all medicines are drugs, but NOT all drugs are medicines)

retina - unwanted changes in the body caused by a medicine (e.g. adult take aspirin to relieve pain or reduce fever, but a possible side effect of aspirin is an irritated or upset stomach)

nearsighted - people trained to prepare medicines

farsighted - a doctor's order for a medicine (it has information such as the name of the medicine, how much you should take, and how often you should take it)

hearing loss - medicines that an adult can buy only with a doctor's order (each prescription medicine is meant for just one person / never take another person's prescription medicine as this can be dangerous to your health)

OPENING (Engage)

Main Idea

Taking care of your vision and hearing is important for your health.

Why Learn This?

Learning about you eyes and ears helps you make good choices about caring for them.

WORK PERIOD (Explore/Explain/Extend/Elaborate)

READ: Your Vision & Hearing

Imagine that you are at a carnival. You see a funny clown walk by. You hear the cheerful tune of a merry-go-round. You enjoy all the sights and sounds. Your vision and hearing help you appreciate the world around you.

What are some problems people have with vision?

To understand how vision works, look at the diagram of the eye below. Light bounces off objects, like the bird. The light enters the eye through a hole called the pupil (proo-puhl). Then the light passes through a clear, curved structure called the lens (LENZ). The lens bends the light to form an image on the back part of the eye. This back part of the eye is called the retina (REH-tuhn-uh). Nerves carry the image from the retina to the brain. When the image reaches your brain, you see the object.

In people with normal vision, the lens focuses images clearly on the retina. Not everyone has normal vision, though. Some people can see objects that are close to them, but they have a hard time seeing thinge that are far away. These people are nearsighted, In nearsighted people the eye focuses images in front of the retina. This causes a blurry image on the retina.

Other people can see things well when they look into the distance, but they have a hard time seeing things that are close to them. These people are farsighted. In farsighted people the eye focuses images behind the retina. The image from the retina that travels to the brain is blurry, too.

People who are nearsighted or farsighted may wear glasses or contact lenses. These artificial lenses focus images correctly on the retina. Glasses and contacts allow most nearsighted or farsighted people to see as clearly as people who have normal vision.