Teaching+Activity


 * Lesson Plan Template **
 * //Title: //** Eye Illusions
 * //Lesson Duration: //**30 minutes
 * //Lesson Objectives: //**
 * **National Science Content and Teaching Standards: **
 * **Science as Inquiry: **Abilities necessary to do scientific inquiry.
 * **Physical Science: **Light travels in a straight line until it strikes an object. Light can be reflected by a mirror, refracted by a lens, or absorbed by the object.
 * **History and nature of science: **Science is a human endeavor.
 * **Illinois State Learning Standards: **
 * **11.A.2b: **Students will formulate investigations on seeing color.
 * **<span style="font-family: 'Times New Roman',serif;">11.A.2.d: **<span style="font-family: 'Times New Roman',serif;">Students will use their data on seeing different colors to produce reasonable explanations.
 * **<span style="font-family: 'Times New Roman',serif;">11.A.2.e: **<span style="font-family: 'Times New Roman',serif;">Students will compare their results with other classmates.
 * **<span style="font-family: 'Times New Roman',serif;">12..C.2a: **<span style="font-family: 'Times New Roman',serif;">Students will different colors to understand how color effect the eyes.
 * **<span style="font-family: 'Times New Roman',serif;">13.A.2b: **<span style="font-family: 'Times New Roman',serif;">Students will learn why similar investigations may not produce similar results.
 * **<span style="font-family: 'Times New Roman',serif;">Illinois Professional Teaching Standards: **
 * <span style="font-family: 'Times New Roman',serif;">1A, 1B, 1L, 2A, 2C, 2H, 5A


 * //<span style="font-family: 'Times New Roman',serif;">Materials/Resources //**//<span style="font-family: 'Times New Roman',serif;">(Per Partner)**:** //
 * 1) <span style="font-family: 'Times New Roman',serif;">1. Construction paper (blue, yellow, red, purple, green)
 * 2) <span style="font-family: 'Times New Roman',serif;">2. Timer
 * 3) <span style="font-family: 'Times New Roman',serif;">3. White paper with X

**//<span style="font-family: 'Times New Roman',serif;">Procedures //**
 * //<span style="font-family: 'Times New Roman',serif;">Making connection / background knowledge: //**
 * <span style="font-family: 'Times New Roman',serif;">Previously we examined how the eye works.
 * o <span style="font-family: 'Times New Roman',serif;">Hand out picture of eye diagram
 * <span style="font-family: 'Times New Roman',serif;">Today we will explore and apply some ideas discussed previously.
 * <span style="font-family: 'Times New Roman',serif;">The eye has many parts, but we are concentrating on three main parts directly involved with sight.
 * o <span style="font-family: 'Times New Roman',serif;">Iris
 * o <span style="font-family: 'Times New Roman',serif;">Retina
 * o <span style="font-family: 'Times New Roman',serif;">Lens
 * <span style="font-family: 'Times New Roman',serif;">The eye’s retina contains millions of cells sensitive to light and color. Most of the eye’s color sensitive cells are clustered at the back of the eyeball near the optic nerve. To see color, some colored light must reach there.
 * <span style="font-family: 'Times New Roman',serif;">Bill Nye The Science Guy Video clip: []


 * //<span style="font-family: 'Times New Roman',serif;">Engagement: //**
 * **<span style="font-family: 'Times New Roman',serif;">Ask students: **<span style="font-family: 'Times New Roman',serif;">Have you ever thought your eyes were playing tricks on you?
 * //<span style="font-family: 'Times New Roman',serif;">Exploration: //**
 * 1) <span style="font-family: 'Times New Roman',serif;">1. With the white paper that has the X on it; put the blue square over the X. Look at it steadily for 30 seconds.
 * 2) <span style="font-family: 'Times New Roman',serif;">2. Remove the square and look at the X on the white paper.
 * 3) <span style="font-family: 'Times New Roman',serif;">3. What color appears?
 * 4) <span style="font-family: 'Times New Roman',serif;">4. Trade off with a partner so they can see too.
 * 5) <span style="font-family: 'Times New Roman',serif;">5. **<span style="font-family: 'Times New Roman',serif;">Teacher(s): **<span style="font-family: 'Times New Roman',serif;">Write down on the board the students results for each color and compare them.
 * //<span style="font-family: 'Times New Roman',serif;">Explanation: //**
 * 1) <span style="font-family: 'Times New Roman',serif;">1. Rest your eyes for about a minute. Then try the yellow and red squares in the same way.
 * 2) <span style="font-family: 'Times New Roman',serif;">2. What color appears after the yellow square?
 * 3) <span style="font-family: 'Times New Roman',serif;">3. What color appears after the red square?
 * **<span style="background-color: white; font-family: 'Times New Roman',serif;">Tell students: **<span style="background-color: white; font-family: 'Times New Roman',serif;">We call these optical illusions. An optical illusion occurs because the different cells and receptors of the eye perceive images and colors at different rates, which sometimes result in a false image being sent to the brain. The brain receives information from receptors in the eye, but the eye can only perceive a certain amount of visual information at a time, while our brain continuously decodes, constructs and reconstructs visual information, giving us the illusion of continuous sight.
 * //<span style="font-family: 'Times New Roman',serif;">Elaboration: //**
 * <span style="font-family: 'Times New Roman',serif;">Describe what you predict will happen with the purple and green squares.
 * <span style="font-family: 'Times New Roman',serif;">Try out your prediction and describe the results.
 * //<span style="font-family: 'Times New Roman',serif;">Evaluation: //**
 * <span style="font-family: 'Times New Roman',serif;">Try to come up with 2 of your own eye illusions and share them with the class and how you made them.
 * o <span style="font-family: 'Times New Roman',serif;">You can find ideas online, but make sure you construct them yourself.
 * //<span style="font-family: 'Times New Roman',serif;">Lesson Assessment: //**
 * 1) //<span style="font-family: 'Times New Roman',serif;">Formative: //<span style="font-family: 'Times New Roman',serif;">observe students as they work together and explore the activity.
 * 2) //<span style="font-family: 'Times New Roman',serif;">Summative: //<span style="font-family: 'Times New Roman',serif;"> Students will be evaluated on their two illusions they come up with themselves.

__<span style="font-family: 'Times New Roman',serif;">Instructional modifications: __ __<span style="font-family: 'Times New Roman',serif;">Assessment modifications: __ __<span style="font-family: 'Times New Roman',serif;">Instructional modifications: __ __<span style="font-family: 'Times New Roman',serif;">Assessment modifications: __
 * //<span style="font-family: 'Times New Roman',serif;">Modifications: //**
 * //<span style="font-family: 'Times New Roman',serif;">ELL Students: //**
 * o <span style="font-family: 'Times New Roman',serif;">Allow more time to finish
 * o <span style="font-family: 'Times New Roman',serif;">Give directions in various ways
 * o <span style="font-family: 'Times New Roman',serif;">Giving special attention to keywords that convey meaning and writing them on the board.
 * o <span style="font-family: 'Times New Roman',serif;">Monitor their work while looking for misconceptions; this will help make sure the students get started on the right track.
 * //<span style="font-family: 'Times New Roman',serif;">Special Education Students: //**
 * o <span style="font-family: 'Times New Roman',serif;">Be clear and consistent
 * o <span style="font-family: 'Times New Roman',serif;">Provide high structure and clear expectations by defining the learning objectives in behavioral terms.
 * o <span style="font-family: 'Times New Roman',serif;">Break down learning into simpler components, moving from most concrete to the abstract.
 * o <span style="font-family: 'Times New Roman',serif;">Allow more time
 * o <span style="font-family: 'Times New Roman',serif;">Give directions in various ways
 * o <span style="font-family: 'Times New Roman',serif;">Monitor their work while looking for misconceptions; this will help make sure the students get started in the right track.

__<span style="font-family: 'Times New Roman',serif;">Instructional modification: __ __<span style="font-family: 'Times New Roman',serif;">Assessment modification: __
 * //<span style="font-family: 'Times New Roman',serif;">Gifted and Talented Students: //**
 * o <span style="font-family: 'Times New Roman',serif;">Provide independent and self-paced learning opportunities.
 * o <span style="font-family: 'Times New Roman',serif;">Allow them to help others if they finish early
 * o <span style="font-family: 'Times New Roman',serif;">None

[]
 * //<span style="font-family: 'Times New Roman',serif;">Closure: //**

<span style="font-family: 'Times New Roman',serif;">A Big Look at the Eye. (n.d.). //- Children's Hospital Colorado-Denver Area, Rocky Mountain Region//. Retrieved from []
 * <span style="font-family: 'Times New Roman',serif;">Resources /References: **

<span style="font-family: 'Times New Roman',serif;">Illinois State Board of Education Home Page. (n.d.). //Illinois State Board of Education Home Page//. Retrieved from []

<span style="font-family: 'Times New Roman',serif;">National Science Education Standards. (n.d.). //The National Academies Press//. Retrieved from []

<span style="font-family: 'Times New Roman',serif;">Peters, J. M., & Stout, D. L. (2011). //Science in elementary education: Methods, concepts, and inquiries//. Boston, MA: Pearson/Allyn & Bacon.

<span style="font-family: 'Times New Roman',serif;">TheRealBillNye. (2009, April 08). Bill Nye The Science Guy on The Eyeball (Full Clip). //YouTube//. Retrieved from []

**__<span style="font-family: 'Times New Roman',serif;">Parts of the eye for sight __**


 * __<span style="font-family: 'Times New Roman',serif;">Iris: __**<span style="color: #444444; font-family: 'Times New Roman',serif;">The iris is the colorful part of the eye. When we say a person has blue eyes, we really mean the person has blue irises! The iris has muscles attached to it that change its shape. This allows the iris to control how much light goes through the pupil.


 * __<span style="font-family: 'Times New Roman',serif;">Lens: __**<span style="color: #444444; font-family: 'Times New Roman',serif;">After light enters the pupil, it hits the **lens.** The lens sits behind the iris and is clear and colorless. The lens' job is to focus light rays on the back of the eyeball — a part called the **retina.** The lens works much like the lens of a movie projector at the movies. Next time you sit in the dark theater, look behind you at the stream of light coming from the projection booth. This light goes through a powerful lens, which is focusing the images onto the screen, so you can see the movie clearly. In the eye's case, however, the film screen is your retina.


 * __<span style="font-family: 'Times New Roman',serif;">Retina: __**<span style="color: #444444; font-family: 'Times New Roman',serif;">Your retina is in the very back of the eye. It holds millions of cells that are sensitive to light. The retina takes the light the eye receives and changes it into nerve signals so the brain can understand what the eye is seeing.

<span style="font-family: 'Times New Roman',serif;">[] **<span style="font-family: 'Times New Roman',serif; font-size: 72pt;">X **


 * __<span style="font-family: 'Times New Roman',serif;">Name: _____Date:___**


 * <span style="font-family: 'Times New Roman',serif; font-size: 14pt;">Eye Illusions **


 * <span style="font-family: 'Times New Roman',serif;">Directions: __**
 * 1) <span style="font-family: 'Times New Roman',serif;">1. With the white paper that has the X on it; put the blue square over the X. Look at it steadily for 30 seconds.
 * 2) <span style="font-family: 'Times New Roman',serif;">2. Remove the square and look at the X on the white paper.
 * 3) <span style="font-family: 'Times New Roman',serif;">3. What color appears?
 * 4) <span style="font-family: 'Times New Roman',serif;">4. Trade off with a partner so they can see too.
 * 5) <span style="font-family: 'Times New Roman',serif;">5. Rest your eyes for about a minute. Then try the yellow and red squares in the same way.
 * __<span style="font-family: 'Times New Roman',serif;">Questions: __**
 * 1) <span style="font-family: 'Times New Roman',serif;">1. What color appeared after using the blue square?


 * 1) <span style="font-family: 'Times New Roman',serif;">2. What color appears after the yellow square?


 * 1) <span style="font-family: 'Times New Roman',serif;">3. What color appears after the red square?


 * 1) <span style="font-family: 'Times New Roman',serif;">4. Describe what you predict will happen with the purple and green squares.


 * 1) <span style="font-family: 'Times New Roman',serif;">5. Try out your prediction and describe the results.

<span style="font-family: 'Times New Roman',serif;">For fun if we have time:

**__<span style="font-family: 'Times New Roman',serif;">Optical Illusion __**