All Resources

Necker Cube

In this demonstration, students are challenged to determine the orientation of the cube, but their brains have a difficult time making a decision.

We use lines in objects for clues about depth. In the Wire Necker Cube, it is not clear which of the two vertical lines in the middle of the cube should be closer to you. Usually, we assume the longer line is the closer one and the shorter one is further away, but in this illusion the two lines are the same length.

Objectives

  • Understand that visual information is processed by the brain.

Materials

  • Per Class:
    Wire Necker Cube template, displayed on a digital projector or printed on either an overhead sheet or on a large sheet of paper for the entire class to see.
    overhead projector (optional)

Key Questions

  • Is it difficult to decide which way the cube is going?
  • Why do you think it is so hard to decide?
  • What cues does our brain normally use to determine the orientation of an object?

What To Do

  1. Show the Wire Necker Cube to the class.
  2. Ask whether the cube is popping out of the page or going into the page.

Extensions

  • Challenge students to draw their own Wire Necker Cube.

About the sticker

Survivors

Artist: Jeff Kulak

Jeff is a senior graphic designer at Science World. His illustration work has been published in the Walrus, The National Post, Reader’s Digest and Chickadee Magazine. He loves to make music, ride bikes, and spend time in the forest.

About the sticker

Egg BB

Artist: Jeff Kulak

Jeff is a senior graphic designer at Science World. His illustration work has been published in the Walrus, The National Post, Reader’s Digest and Chickadee Magazine. He loves to make music, ride bikes, and spend time in the forest.

About the sticker

Comet Crisp

Artist: Jeff Kulak

Jeff is a senior graphic designer at Science World. His illustration work has been published in the Walrus, The National Post, Reader’s Digest and Chickadee Magazine. He loves to make music, ride bikes, and spend time in the forest.

About the sticker

T-Rex and Baby

Artist: Michelle Yong

Michelle is a designer with a focus on creating joyful digital experiences! She enjoys exploring the potential forms that an idea can express itself in and helping then take shape.

About the sticker

Buddy the T-Rex

Artist: Michelle Yong

Michelle is a designer with a focus on creating joyful digital experiences! She enjoys exploring the potential forms that an idea can express itself in and helping then take shape.

About the sticker

Geodessy

Artist: Michelle Yong

Michelle is a designer with a focus on creating joyful digital experiences! She enjoys exploring the potential forms that an idea can express itself in and helping then take shape.

About the sticker

Science Buddies

Artist: Ty Dale

From Canada, Ty was born in Vancouver, British Columbia in 1993. From his chaotic workspace he draws in several different illustrative styles with thick outlines, bold colours and quirky-child like drawings. Ty distils the world around him into its basic geometry, prompting us to look at the mundane in a different way.

About the sticker

Western Dinosaur

Artist: Ty Dale

From Canada, Ty was born in Vancouver, British Columbia in 1993. From his chaotic workspace he draws in several different illustrative styles with thick outlines, bold colours and quirky-child like drawings. Ty distils the world around him into its basic geometry, prompting us to look at the mundane in a different way.

About the sticker

Time-Travel T-Rex

Artist: Ty Dale

From Canada, Ty was born in Vancouver, British Columbia in 1993. From his chaotic workspace he draws in several different illustrative styles with thick outlines, bold colours and quirky-child like drawings. Ty distils the world around him into its basic geometry, prompting us to look at the mundane in a different way.