Healthy Eyes and Ears
Kelly Komara / Joe Paxton
Chapter 2, Lesson 3
Introduction and Overview:
To begin the class, we will introduce ourselves as the teachers of the class. We will also
present a few rules to allow the class to move smoother. Next we will introduce the subject
matter of healthy eyes and healthy ears.
Instruction:
Objectives:
Content:
 The students will be able to display knowledge of the basic anatomy of the eye and
ear.
 The students will be able to display knowledge of decibel ratings and optical illusions.
Skill:
 The students will show respect to the teachers and answer the questions presented only
when called upon.
 The students will participate in the activities provided involving eye illusions and
decibel ratings.
Instructional Activities:
Basic Eye Anatomy Questions
Arrangement of Students: regular classroom setting in their assigned seats
Method: Questioning
Material: Overhead
Procedure: The teachers will ask basic questions about the anatomy of the eye:
 Which part of the eye allows light to come together in the inner part of the eye?
LENS
 Which part of the eye is a clear almost round structure that lets in light?
CORNEA
 Which part of the eye is the color of the eye seen from the outside?
IRIS
 Which part of the eye is the dark opening that controls the amount of light entering the
eye?
PUPIL
 What is the water fluid between the cornea and the lens called? It also helps maintain
the pressure in the eye.
AQUEOUS HUMOR
 Which part of the eye is the tough outer covering?
SCLERA
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
Which part of the eye is a network of nerves that absorbs light rays after they pass
through the lens?
RETINA
Which part of the eye is a cord of nerve fibers that carries electrical messages from the
retina to the brain?
OPTIC NERVE
Content Bites:
Skill Cues:
Optical Illusion Activity
Arrangement of Students: Split into groups for different illusion stations or remain in
assigned seats.
Method: Station Work or questioning
Material: Stations or overheads with overhead projectors
Procedure: If station work is the activity method:
The students will be split into 10 stations. At each station there will be an illusion. The
students will follow the instructions at each station and view the optical illusion. The students
will have between 1 and 2 minutes to follow the instructions of the station before the teachers
will instruct the students to move to the next station. The students will carry a pen and paper
to each station to report findings.
If question is the activity method:
The students will sit in regular assigned seating the teachers will present an illusion on the
overhead one at a time. The teachers must point out that it is important that nobody shouts
out answers and only answer when called upon. The teachers will question the students about
each illusion.
The teachers must point out that these illusions are not the direct result of how the eye sees,
but is how the brain perceives what the eye is seeing.
Content Bites:
Skill Cues:
Basic Ear Anatomy Questions
Arrangement of Students: regular classroom setting in their assigned seats
Method: Questioning
Material: Overhead
Procedure: The teachers will ask basic questions about the anatomy of the ear:
The teachers will name a part of the ear and the students will respond with whether the
part is part of the “Outer ear”, “Middle ear”, or “Inner ear”
 Anvil – MIDDLE EAR
 Ear Drum – MIDDLE EAR
 Cochlea – INNER EAR
 External Auditory Canal – OUTER EAR



Semicircular canals (responsible for balance) – INNER EAR
Hammer – MIDDLE EAR
Vestibule – INNER EAR
Content Bites:
Skill Cues:
Decibel worksheet
Arrangement of Students: regular classroom setting in their assigned seats
Method: worksheet activity
Material: worksheet
Procedure: The teachers will pass out the worksheet and allow the students 5 minutes to fill
out the worksheet the best they can. Teachers will walk around and help out students during
this time. After the 5 minutes is up, the teachers will go over the worksheet to insure
understanding.
Content Bites:
Skill Cues:
Conclusion of Lesson:
Review of the Content and/or the skills of the lesson:
Content: Review the anatomy quickly
Skill: Review the illusion and decibel activities quickly
Debriefing Questions:
Content:
 Name the 3 main sections of the ear. OUTER, MIDDLE, and INNER EAR
Skill:
 Name favorite illusion
Preview of the Content and/or Skill of the next lesson:
Content: Not available
Skill: Not available
Lesson Assessment:
Content: Worksheets and Teacher observation
Skill: Teacher observation
Resources:
Student:
Teacher:
Class Textbook
Class Textbook
Optical Illusions from - http://members.aol.com/Ryanbut/optical.html