Открытый урок «Оптическая иллюзия»

Section 1

Introduction

Greetings.

Today we are going to talk about very interesting things which happen around us but we seldom pay our attention to them and I won’t tell you about the subject of our conversation because I hope you can do it themselves a little later.

And our first wow-factor is this picture. Look at the screen.

T: What can you see in this picture?

S: (Students’ answers)

T: How many whales can you see?

S: (Students’ answers)

T: Different numbers of whales but the right answer is 13.

I can say when I tried to find 13 whales at home I could find only 12 of them and I failed to find the 13^th one. Roman helped me do it. Let’s check.

( I show 13 whales in the picture.)

What do we pay our attention to when we see the picture at first?

S: ( 5 whales)

Can you explain why?

S: - The images are large.

-They are in the foreground.

- The images are accurate and clear, real and bright.

T: What about the colours of the picture?

S: The colours are mostly white, black, grey with different shades of grey colour.

T: What about the background of this picture.

S: First it seems that the background is water, seaweed and other sea-plants but if we look at this picture with concentration we begin to distinguish or even discover images of other whales.

T: What methods and ways were used by the author to play such tricks with our eyes?

S: Representation main images in the foreground.

Using contrasting colours.

Using different combinations of light, shade and penumbra.

T: It allows us to see objects in tree dimensions even though they are in the picture is only two dimensional.

S:

When we look at them we have a sense of motion.

T: Diagonal disposition of main images, the curve of their bodies, air-bubbles around the whales – all these things create such perception. They are dynamic.

What conclusion can we make from our conversation?

S: - When we first look at a picture we can see one thing but when we continue to stare at it we can see something else.

T: And now it’s time to talk about the theme of our lesson. You’ll see several variants of it. Choose the best one.

The underwater world.

Methods of painting.

Optical illusions.

Styles of painting

Section 2

T: I can say that we meet various mind puzzles in our real life when our eyes don’t always see the world as it really is. I want you to give some examples of them.

S: - When you stand on the road and look far forward it seems the road narrows and then turns to a point.

On a hot day the surface of a road doesn’t seem flat it looks like sea waves.

Sometimes the wheels of the car seem to spin against the movement because of the shape of the spokes.

When we are in a traffic jam and all the cars don’t move then the nearest car starts its moving, it seems that your own car moves back.

When you look at the top of a high building and clouds are floating in the sky, it seems that the building is falling down.

T: You are quite right . We notice such things but forget about them very quickly. But there are people among us who watch our world more attentively, take an interest in these things. Besides they have bright and vivid imagination to create images which make bigger impression on us and they show people real objects in surprising and unusual ways.

What are they?

S: Artists, photographers, designers and etc.

Section 3

T: During our lessons we discussed several painting styles. Name them.

S: Cubism, Surrealism, Pop art.

T: And your homework was to create a mini-project about one of these styles.

Who has a desire to represent it to us.

S: (Students’ projects)

Section 4

T: And now we’ll try to describe two paintings of different styles.

It will be a group work.

Before this task let’s review the structures with modal verbs (must be, can’t be, may be ) which we can use in our descriptions.

Making assumptions, using modal verbs: must, can’t, may

When describing pictures , describe them as fully as you can. If it is possible, you should mention:

style

subject

location

season

weather

what is in the foreground/background

colours

feelings

S: Students work in groups, describing pictures

Section 5

T: Which picture was more difficult to describe?

The second one. Because we can see no objects, only lines, spots different colours. We can only say about out thoughts, assuptions, feelings, atmosphere and etc.

The painting style of this picture is abstract art. We didn’t talk about this style and it will be your homework to find information about it on the Net and prepare a mini-project for the next lesson.

T: Your descriptions are very interesting and aren’t similar even though they are about the same paintings. It’s o key when we have a different opinion about something. We are just seeing things in a different way. It’s because seeing is a complicated process.

We are going to find out how this process happens. We’ll read the text but the text with blanks. Our task is to complete the text and then think of the main idea of this text.

Just an Illusion

touch, brain, end, images, quickly, optical, at, further, playing, different, worry, correct, complicated, lessons

If you stand at the 1…. of a train track and look down it, what do you see? The 2…. down the tracks you look the closer the two tracks seem to be. Eventually, they appear to 3… , but we all know that they don’t really. Our eyes are simply 4… tricks on us.

So, why don’t out eyes see the world as it really is? Well, simply because seeing is a 5… process! Our eyes work together with our 6... to ‘understand’ what we are seeing. Because our eyes take in 7… all day long, our brain tries to help us to make them simpler so that we don’t 8… about unimportant details. Our brain then ‘learns’ how to see things a certain way, which may not always be 9… ! When we watch TV, for example, our brain has learnt to see movement, but in reality we are seeing a series of individual images very 10.. . This is why we can have so much fun with 11… illusions! Our brain ‘sees’ things that aren’t really there, or fails to see something that is there.

Optical illusions can teach us some important 12.. about life. Firstly, there may be more to a situation than we see at first, just as we may see one thing when we first 13… at a picture, and something else when we continue to stare 14… it. Also, there is often more than one way to see things. It’s okay if you and your friend have a different opinion about something, for example. You are just seeing things in a 15… way, that’s all.

What about the main idea of this text. Why is seeing a complicated process?

-Our eyes work together with our brain and our brain makes the images simpler

- We don’t worry about unimportant details.

- Our brain sees things that aren’t really there.

- There is often more than one way to see things.

- What you see isn’t always what you get.

- We see things in a different way.

- It’s not an easy thing to see something that is there.

- We see only that which we are concentrating on, which we find interesting.

T: - Vision is the most creative act. Our mind is an artist, it interprets and reconstructs our near environment.

- Each situation can be seen from a number of viewpoints. It depends of our concentration, our mood, maybe even our health and etc.

Section 6

The creative practical task

Now we’ll try to illustrate that our mind is an artist and we, together with our mind, are artists too. We’ll do a very creative task. Each team has the sets of the same elements. They are geometric shapes. Your task is to create a picture and name it if it’s possible. To do this task each team has to choose the background for its picture. They are in different colours. Come up and choose .

S: ( Do the task. )

T Now. look at your works at art.

The same object in the painting by Pablo Picasso. The same image created by nature. And the real object, a musical instrument –violin.

We can see how this real object can be transformed and represented by different personalities.

Section7

Conclusion

Today we have talked about optical illusions but in reality we have talked about the world around us because all works of arts can not be created without objects existing around us. But at times we are really “blind” in the truest sense of the world. We don’t see what we don’t pay attention to even when it is in front of our eyes.

Open your eyes, open your mind and the world pops in it. Look and watch. It is amazing!

Answers to the exercises.

Modal verbs:

a) b)

1 may 4 may 1 can’t 4 must

2 must 5 can’t 2 may 5 may

3 must 6 may 3 must

Text.

1 end 6 brain 11 optical

2 further 7 images 12 lesson

3 touch 8 worry 13 look

4 playing 9 correct 14 at

5 complicated 10 quickly 15different