Flex 1-6

Potential Uses of Optical Illusions

vocabulary

effect - 効果

effective - 効果的な

effectiveness - 効果(がどれだけあるか)

nonetheless - それでも、それにもかかわらず

limitation - 制限、限界

application - 実用、活用　

keep A in mind - Aを心にとめる、覚えておく

nor... - そして...でもない(否定的な表現に続いて)

over time,... - 時がたつにつれ　

​Many kinds of optical illusions!!

​...example?(what kind of optical illusion did we read about?)

Word Cloud

Which optical illusion do you like the best?

​Optical illusions can do many things!!

Multiple Choice

Can optical illusions trick your eyes?

• Yes

• No

Multiple Choice

Can optical illusions help people find an elevator?

• Yes

• No

Multiple Choice

Can optical illusions make a room look bigger?

• Yes

• No

Multiple Choice

Can optical illusions prevent accidents?

• Yes

• No

​But...

Multiple Choice

Can optical illusions really make a garden bigger?

• Yes

• No

Multiple Choice

Can optical illusions really make a room spacious?

• Yes

• No

​Optical illusions CANNOT do everything!!

​The power of optical illusions is limited.

First time....

First time....

Second time....

Second time....

Third time....

Third time....

Fourth time....

Poll

Same effectiveness the fourth time?

• Yes

• No

​Over time,
it will lose its effectiveness.

​

​it's just an illusion!!

Drivers will realize...

​Nonetheless...

Poll

Do you think optical illusions are useful?

• Yes

• No

Poll

Will we find more ways to use optical illusions?

• Yes, I think so

• No, I don't think so

​Textbook thinks...

​It should be possible
to find a wider variety
of useful applications.

​questions!!

Multiple Choice

The power of optical illusions...

• lasts forever!!

• is limited.

• makes things larger!!

Multiple Choice

As time goes by, a 3D crosswalk will...

• be a 4D crosswalk!!

• lose its effectiveness.

• make cars larger!!

​Good job!!!