08(必修2)Unit 5 Humans and Nature—Viewing Workshop（导学案2）

skybamboo · 发表于 2 小时前

Unit 5 Humans and Nature
Viewing Workshop
【学习目标】
Students will be able to
1. read and talk about the universe
2. view for understanding
3. summarise information
【学习重难点】
1. talking about the universe
2. summarising information from the video
【学习过程】
1. What do you know about the universe?
2. What do you want to know about the universe?
3. Watch the first part of the video and complete.
(1) The universe is about __________ years old.
(2) The observable universe is about _________ light years across in diameter.
(3) Today the distant objects like stars that we can observe are a bit more than ____________ light years away.
4. Watch the rest of the video. Complete the table.

Questions	Observable Universe	Whole Universe
(1) How big is it?
(2) Is there an edge?
(3) Is there a centre?
(4) Is it getting bigger?

5. Watch again and discuss.
(1) What is the Earth compared to? Is the comparison useful in understanding the infiniteness of the universe?
2) What methods does the presenter use to enable viewers to understand this piece of knowledge in physics?
6. Find more and share.
(1) What have you learnt about the size of the universe?
(2) Find more information online and share with the class.

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[北师大版] 08(必修2)Unit 5 Humans and Nature—Viewing Workshop（导学案2）