SCIENCE 10 OPTICAL ILLUSIONS

At the end of this module, you are expected to learn: ➢ Enumerate the importance of optical illusion to our daily lives. ➢ Define the benefits of optical illusion. ➢ Illustrate the risk and safety of optical illusions.

Introduction: Welcome to today’s module, do you want to learn how our eye can be deceived into seeing unusual things? How does optical illusion affect our daily lives? What are the benefits and risks of visual illusions? When and where the optical illusion was first discovered? How did the topic rose to popularity and how does it impact the current generation? You’ll find out here!

Bibliography We are Grade 10 students of Dela Paz High School and we’re here to discuss about Optical Illusions. Hi, I’m Sebastian, B. I draw, read book, or playing games in my spare time. Hi, I’m Kristel, C. My hobbies are reading book, drawing, and watching dramas. Hi, I’m Erwin, G. A working student and my hobbies are scrolling to my cell phone, playing basketball, travel out of town, and jogging.

TABLE OF CONTENTS TITLE AND OBJECTIVES……………………….1

INRODUCTION…………………………………...2 BIBLOGRAPHY………………………………….3 TABLE OF CONTENTS……………………….4 PRETEST…………………………………………..5 RECAP……………………………………………...6 LESSON………………………….7-8 ACTIVITIES (A & B) ……………………….9-10 VALUING AND GENERALIZATION/WRAP UP………………………………………………….11 POST TEST……………………………………….12 REFERENCES……………………………………13

Pre-test: Directions: (Multiple Choice) Read and carefully analyze the questions. Choose your answer inside the box. Protagoras Aristotle

5th Century B.C. Epicharmus Optical Illusion

1. This phenomenon occurs when our eyesight deceives us into seeing objects that are different than the actual thing. 2. When was Optical Illusion discovered? 3. Who was the Greek philosopher to first theorize that our senses deceiving us are the causes of Optical Illusion? 4. Who was the Greek philosopher who disagree with Epicharmus and thought the exact opposite? 5. He was another Greek philosopher from 350 B.C. that believes both optical illusion theories are correct.

Recap: Directions: Write what you have learned about the previous lesson by answering the questions below:

1. Why does the word ‘AMBULANCE’ in the ambulance vehicle is written in reverse?

2. What is the difference between concave and convex mirrors?

Lesson: Have you ever wondered why your eyes sometimes tricks you into seeing things that aren't there? That's what you call an Optical Illusion, it occurs when your eyesight is deceived into seeing things different than what the object is, but you may ask yourself, how does it work and when was it discovered? That's the phenomenon that we'll tackle today in this module, we will learn about the origins and different types of Optical Illusions.

Origins of Optical Illusion: The history of optical illusions can be traced back to 450 B.C. in Ancient Greece, a Greek philosopher named Epicharmus, he believed that our senses could trick us to seeing images that are deceptive, creating an optical illusion. On the other hand, Protagoras, another Greek philosopher, believed that it is the environments that are messing up our senses. After for a while Greek philosopher who goes by the name of Aristotle who lived in the 350 B.C. said that both Epicharmus and Protagoras we're right and wrong. He believes that senses can be trusted but can easily be deceived. As time passes by, in the 19th century, Johannes Mueller and J.J. Oppel developed interest in the topic of optical illusions, so they wrote numerous articles and books about this topic. Optical illusions rose to popularity due to the studies and experiments made by the psychologists.

How does Optical Illusions work? Optical Illusions has become a thing of today. They are used in art, music, jobs, and entertainment. We see them everywhere, to images, videos, newspapers, books, even on technologies, but how does Optical Illusion work? Optical illusions, also known as visual illusions, are made up of visual deception. Due to the way the images are arranged, the effect of colors, the impact of light source or other factors, a wide range of misleading visual effects are perceived by the human eye. Some people may not experience optical illusions, for some illusions, they don't feel it's effects.

Types of Optical Illusion: There are 3 main types of illusions that you should know such as Literal, Physiological and Cognitive. A literal illusion is when your eyesight sees the object or an imagine different from what it's supposed to mean, Physiological optical illusions are more complex because they reply on the over stimulation of the brain’s senses, lastly, Cognitive optical illusions are the most researched by scientists and psychologists because it is the most complex type of trick the eye can play on the brain.

Lists of popular Optical Illusion: Artists, researchers, and entertainers alike uses optical illusions to trick people’s vision whenever it’s for entertainment or research purposes and they’re usually everywhere like the internet, newspapers, televisions etc. Here are some examples:

The Troxler’s effect

Checker Shadow Illusion

Chubb Illusion

the Poggendorff Illusion

Activities: A. Directions: Read the questions carefully and fill in the blanks with letters to form the correct answer: 1. A Greek philosopher who believed that it was our senses that are deceiving us.

E

C

R

S

2. A physiologist who develop interest in optical illusions and began studying the topic.

J__AN_E M_E___R 3. It was also known as visual illusions, the eyesight tricks us into seeing objects or an image very differently.

O_ T _ _ A _ I L L _ S _ _ N 4. It's a type of illusion that is complex because they reply on the overstimulation of the brain's senses.

P_ Y S _ O L O _ G _ C _ L 5. It's the type of illusion that are the most researched by scientists and psychologists because it is the most complex type of trick the eye can play on the brain.

C_G____VE

B. Directions: You are aspiring to become an optical illusion artist and you wanted to draw optical illusions to trick your viewers, as an artist, you can look up on the internet for images of optical illusions to be used as references. Draw your optical illusions in the box provided below:

Valuing: As we are almost finished with today’s lesson, have you ever been tricked by an optical illusion? If so, is it from a social media feed once or a friend or a family member of yours send a very puzzling image? Write your first-time experiences here in the box down below:

Generalization/Wrap up: Write two or more things you learned from this module by answering the questions below:

1. What do you learned about Optical Illusion today?

2.

What

can

you

use

Optical

Illusions

for

in

today's

time?

Post-test: Directions: (Multiple Choice) Read and carefully analyze the questions. Choose your answer inside the box: 19th Century Physiological Johannes Mueller Entertainment Cognitive

1. They are two psychologists who continued studied the optical illusions and help made the topic popular. 2. In today's time, what is Optical Illusions used for? 3. What century does the topic of Optical Illusion became popular? 4. It is the type of illusion that tricks the brain. 5. It's the type of illusion that is studied by most scientists and psychologists due to how complex it is.

References: https://sciencestruck.com/history-of-optical-illusions https://www.indiatimes.com/trending/socialrelevance/how-optical-illusions-work-569289.html https://www.cleareyes.com/eye-careblog/201610/types-opticalillusions#:~:text=There%20are%20three%20main%20typ es,physiological%20illusions%20and%20cognitive%20illu sions https://visme.co/blog/best-optical-illusions/