Optical Illusions (Grades 3-5)

10 minutes

• Definition of an optical illusion: an optical illusion is a distortion of perception. The brain arranges, sorts, and organizes data from the senses, leading to a perception that may be different from reality.
• Review examples of optical illusions and discuss the concept in more detail.
• Show how Clixo pieces can be arranged to create illusions that change with different perspectives.

45 minutes

Task:

• Use the hour to create your optical illusion.
• Encourage students to work alone or in teams to create something that has two or more different looks.

Optional:

• If students finish early, they can draw a picture of what they created, showing the different perspectives.

Presentation and Discussion (10 minutes):

• Present creations to the class.
• Discuss the different interpretations of each creation.

Example Questions:

• What illusions did you create?
• How does changing the perspective alter what you see?
• What techniques did you use to ensure your creation could be seen in multiple ways?

Additional Ideas:

• Shadows, Tessellations, Rorschach Tests, Clouds: Discuss how these also create different perceptions and can be sources of inspiration for their creations.

Twist: Game (Apples to Apples style):

• Objective: Create something and have teammates guess what they think it is.
• Winner: The person who guesses correctly or comes up with the funniest guess.

• Encourage creativity and thinking outside the box.
• Remind students that there are no right or wrong answers in how they perceive the illusions.
• Foster a collaborative and supportive environment where students feel comfortable sharing their ideas.