How life began on the earth
Be happy and active, enjoy this class
We are group________
1.Before Reading
What is evolution? (surf the Internet)
Evolution is _____________________________________________________.
【设计】以我和外教Ron的争论开篇，开篇就让学生进入批判性思维的情境。引出什么事“进化”，同时鼓励学生利用网络解决疑惑。
2.While Reading
Step 1. skimming
【设计】学生掌握Skim的技巧，找出每一段主旨大意。
Step 2. scanning (we’ll do Jigsaw. )
What is Jigsaw? (surf the Internet again)
Jigsaw is _____________________________________________________.
【设计】因为全文较长，所以采用Jigsaw这种在美国文科课堂常用的方式,进行合作学习.
___________will see p1,2
Universe began with a _____________.Several billion years after the Big Bang, a cloud of dust settled into_____________. The globe exploded violently It was in time to produce ___________and gases. They were to make the earth’s_____________.What is more important is that as the earth cooled down, _________began to appear on its surface .
___________will see p3
What many scientists believe is that water allowed the earth to dissolve harmful gases and acids into the ______________.
___________will see p4 ___________will see p5
3.Post-reading
Think after reading
If there were no human beings,
the earth/water/---------------------would (not)________________________.
__________________________________________________________________________________________________________________________
__________________________________________________________________________________________________________________________
_____________________________________________________________
【设计】学生落实知识，在教师创设的开放性话题里，进行批判性思维。
Critical thinking
http://www.origin-of-life.net/
【设计】教师给出宗教和进化论之外的第三种解释，学生根据提示，再次上网查找相关资料，再次进行批判性思维。
4.Homework
1. Read the abstract of Solving Big Questions .
2. Think critically and finish an essay entitled My Belief on the Origin of Life.
【设计】作业二选一，体现自主性。
课堂可能会消灭知识盲点，学生带着问题进来，带着解答离开。
而课堂更应该针对社会、人生等问题，让没有思考的学生带着思考离开。
课件25张PPT。How life began on the earthRon
evolutionWhat is evolution?Please surf on the Internet and find it out.While-readingStep 1. skimmingSkimming: Fast reading for general idea;
Focus on the topic sentences;How life began on the earthPlease find the main idea of each paragraph.
Paragraph 1: Big Bang TheoryParagraph 2: The formation of the earth Paragraph 3: The importance of water for lifeParagraph 4: The development of plants and animalsParagraph 5: The appearance of clever animalsSkimming: While-readingStep 2. scanning
Scanning: Read through paragraphs to find detailed information.Today, we’ll do Jigsaw. , JigsawAssign Topics - The passage is divided into six paragraphs and each student in the team is assigned one or two paragraphs.
Experts Share and Tutor - Experts take turns sharing their individual topic expertise with team members.
Presentation of Knowledge - The activity allows individual team members to present their knowledge of all topics identified in the passage.Part1 (para1~3) The development of the earth
a Big Bang(2) Several billion years after the Big Bang, a solid globe a cloud of dust settled intoThe globe
exploded violentlywater vapour
and gases(3) What happened next?It was in time to produce They were to make the earth’s_____________atmosphere(4) What happened next?What is more important is that as the earth cooled down, __________began to appear on its surface .(5) What is more important then?water(6) Why was water fundamental to life?What many scientists believe is that water allowed the earth to dissolve harmful gases and acids into________________________the oceans and seas.a cloud of _____ After
Big Banga solid _______settled intoAs the earth cooled downThen, it exploded ________and was in time to produce_____
appearedthe earth’s ___________dustglobeatmospherePlease retell how the earth came into being?
waterviolently, Part 2(4~5): The development of lifeWhile-readingStep 3. Careful reading 1. 2. 10. 3. 4. insects (on land)
5. 6. 7._________
8. dinosaurs (on land)
9._________ small ________ in water_________ and all sorts of fishgreen plants on land ___________forests (on land) (on land)small clever animals with ______________plantsshellfishamphibiansreptilesmammalshands and feetP4-make a timeline Step 3. Careful reading Evolution is a circle of life!
Think after reading
If there were no human beings, the earth/water/---------------------would (not)________________________.Word Bank
globe, atmosphere, amphibians, reptiles, violent, exist, harmful Post-readingCritical
thinking R. L. Wysonghttp://www.origin-of-life.net/
1. Read the abstract of Solving Big Questions .
2. Think critically and finish an essay entitled My Belief on the Origin of Life. You can choose either of them.
We have to use reason, facts, and an open mind.
Homework Stay hungry, stay foolish!
Thank you!
学生课上测评练习
How life began on the earth
Be happy and active, enjoy this class
We are group________
1.Before Reading
What is evolution? (surf the Internet)
Evolution is _____________________________________________________.
2.While Reading
Step 1. skimming
Step 2. scanning (we’ll do Jigsaw. )
What is Jigsaw? (surf the Internet again)
Jigsaw is _____________________________________________________.
___________will see p1,2
Universe began with a _____________.Several billion years after the Big Bang, a cloud of dust settled into_____________. The globe exploded violently It was in time to produce ___________and gases. They were to make the earth’s_____________.What is more important is that as the earth cooled down, _________began to appear on its surface .
___________will see p3
What many scientists believe is that water allowed the earth to dissolve harmful gases and acids into the ______________.
___________will see p4 ___________will see p5
3.Post-reading
Think after reading
If there were no human beings,
the earth/water/---------------------would (not)________________________.
__________________________________________________________________________________________________________________________
__________________________________________________________________________________________________________________________
_____________________________________________________________
Critical thinking
http://www.origin-of-life.net/
4.Homework
1. Read the abstract of Solving Big Questions .
2. Think critically and finish an essay entitled My Belief on the Origin of Life.
