Lesson 2 - The Eye and How We See

Grade 3 - Grad3 4
Optical Illusions

Optical Illusion

 

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Are the center circles the same size?
    a.yes
    b.no

  

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What kind of illusion is this?
    a.a 3D illusion
    b.a distorting illusion
    c.a paradox illusion

 

 

cafe wall illusion

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Are the lines in the image the same height/width?
    a.yes
    b.no

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What kind of optical illusion is this?
    a.a physiological illusion
    b.an impossible object
    c.a distorting illusion

 

Take a closer look at the
Cafe Wall Illusion

 

 

 3D Illusion

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What kind of illusion is this?
    a.a distorting illusion
    b.a 3D illusion
    c.a paradox illusion

Elephant

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How many legs does the elephant have?
    a.4
    b.5
    c.impossible to tell

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What kind of illusion is the elephant illusion?
    a.a distorting illusion
    b.an afterimage
    c.a paradox illusion

 

 

 

 

 

 

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