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Optical Illusions


SUBMITTED BY: Raymond Corrigan

BORROWED FROM / INSPIRED BY: Let`s Chat section of New Horizon


GRAMMAR: Let`s Chat New Horizon (grade 2, p. 93)

EXAMPLE: A: I think it`s a duck. B: I disagree.

DATE ADDED: Dec 07, 2009


Small Classes (1-15 Students)ÒLarge Classes (16-39 Students)Ó


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BRIEFOUTLINE: Student's agree or disagree with each other about double picture optical illusions.



  • OpticalIllusions handout: The first 2-picture illusion on page one of the handout is to be used as the example picture to demonstrate with the JTE.



  1. Display the face-musician poster on the chalkboard, asking the students "What's this?"  Students will probably say "It's a face."
  2. One teacher says, "I agree, I think it's a face."  The other teacher says, "I disagree, I think it's a man playing music."  Show the students where the musician's nose, feet and saxophone are.
  3. Hand out the eight types of illusions at random.
  4. Students walk around, find a partner and question each other:
    • A: Shows his illusion to student B and asks, "What`s this?"
    • B: "I think it's a ~."
    • A: Marks student B's choice in the table below the picture and responds, "I agree" or "I disagree" depending on what they see.
  5. A and B reverse roles and do the dialogue again.
  6. Students find new partners and repeat.



  • "I think so, too." and "I don't think so." can be used.

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This page was last modified on Thursday, March 15, 2012 12:13:20 PM