In this activity, students navigate a reflected maze.

Mirrors disrupt eye-hand coordination because the image in a mirror is reversed. The movements you see are the opposite of what you expect to see.

When light from an object hits a flat, shiny surface, nearly all of it is reflected (bounces back) in a predictable way. The light bounces back at the same angle it came in at. When your eye catches the light, it appears as though it came from behind the mirror.

When you look in a flat mirror, you see a reflection of yourself that is the same size as you but reversed.

Right and left are reversed in the image because a light ray coming off your right hand bounces off the mirror, and into your eye. To your eye and brain, the light ray appears to have come from the left hand of someone who looks just like you, standing on the other side of the mirror. Because the image is “behind” the mirror, your right hand is their left one.

Ponder this: we may describe a reflected image as “switched from side to side”. But really, a mirror only changes the direction the object is facing into and out of the mirror. That is, back to front or front to back .

### Objectives

• Describe how light rays can change direction.

• Demonstrate how visible light is reflected.

### Key Questions

• Why is it difficult to change direction in the maze when looking in the mirror?
• Which maze took longer?
• Which could you complete more accurately?
• Could you improve your performance with practice?

### What To Do

1. Work with a partner. Use a pencil to trace a path through maze A while your partner times you using a stopwatch.
2. Next, with your partner holding the mirror at the top of the maze B, draw a path through the maze, looking only at the reflection of the maze while your partner times you. Hint: To make sure the students doing the activity cannot see the maze, have them cover their drawing hands with paper.
3. Switch roles with your partner and do the activity again.
4. Compare how long it took to draw without the mirror and to draw with the mirror. If there’s a difference, how can you explain it?

### Extensions

• Ask students to draw a simple shape like a star or a heart. Have them trace that shape, looking only at its reflection in the mirror.
• Leonardo da Vinci wrote all of his notes in mirror-writing (from right to left). Can you write a message in mirror-writing? Try it, and then check it by using a mirror.
• Is it easier to write in mirror writing with your left hand or your right?

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.

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.

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.

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.

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.

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.

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.

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.