TOPIC1：How we see color
https://ed.ted.com/lessons/how-we-see-color-colm-kelleher#review
1. What is your favorite color and why?
2. Do you know of any meanings associated with particular colors? Elaborate.
3. Which color do you like the least? Why?
4. How would your life change if you could no longer see colors?
5. What do you think the world would be like without colors?
TOPIC2：Why school should start later for tens
https://www.ted.com/talks/wendy_troxel_why_school_should_start_later_for_teens?langua
ge=ja#t-540486
1. When you were a kid, how did your parents make you get up? How about now?
2. How many hours do you want to sleep? Can you do that?
If not, why you can’t take enough time to sleep?
3. When you are sleepy, what do you do?
Do you drink coffee or do some exercises?
4. Should schools start late so children can sleep longer?
Why and why not? Please explain.
5. Can your attitude be changed by your sleeping hours?
