幻灯片 1 Unit 3 Understanding Science Have you seen

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幻灯片 1 Unit 3 Understanding Science Have you seen Powered By Docstoc
					       Unit 3
Understanding Science
 Have you seen
 this before?
Total Solar
Eclipse
2008 Total Solar Eclipse
Is science far
away from us?
Is science itself a
potential for
good or evil ?
What attitude
should we adopt
toward science?
Professor Hawing
thinks it important
to keep everybody
in touch with what
science is about.
In this article he
explains why.
    Text A
Public Attitudes
toward Science
          Pre-reading Tasks


While-reading Tasks




 After-reading Tasks
        Pre-reading Tasks
1. Warm-up Activities
     2. Background Information
The Science Game
Welcome to
Who Wants
to Travel to
the Outer
Space?
Test your
knowledge of
math and science
as you work your
way to your
dream !
        RULES
            Make a poll


   8        Ask an expert
questions
              50/50
Ready ?
Let’s start !
    Astronomy Question
    What planet is this?



      Mars         Make a poll
     Mercury
      Earth        Ask an expert

1     Venus          50/50
The folks in
the classroom think:
0%       Mars
0%       Mercury
100%     Earth
0%       Venus
A scientist is
 thinking:
"I am certain that
 this is the planet
 Earth."
Mars
Mercury
Earth
Venus
Unfortunately, it is not the
right answer. Do you want to
try again?
        Math Question
    On the graph below,
    which point is located
    at (-4, 2)?




2
1
       Math Question
    On the graph below,
    which point is located
    at (-4, 2)?

          D          Make a poll
          E
2         A          Ask an expert

1         H            50/50
The good folks in
the classroom think:
70%      D
16%      E
14%      A
0%       H
A scientist is
 thinking:
"I am certain that
 Point D is located at
 (-4, 2)."
D
E
A
H
Unfortunately, it is not the
right answer. Do you want to
try again?
     Astronomy Question
    What is at the center
    of our solar system?

    The Earth      Make a poll

3
    The Moon
                   Ask an expert
2   The Sun
1   Beijing          50/50
The good folks in
the classroom think:
30%      The Earth
2%        The Moon
68%      The Sun
0%        Beijing
A scientist is
 thinking:
"I am certain that
 the sun is the center
 of our solar
 system."
The Earth
The Moon
The Sun
Beijing
Unfortunately, it is not the
right answer. Do you want to
try again?
       Physics Question
    What unit could you use
    to measure the length of
     an object?
     Centimeter
4                     Make a poll

3
     Gallon
2     Kilograms      Ask an expert

1     Seconds             50/50
The folks in
the classroom think:
90%     Centimeters
0%      Gallon
10%     Kilograms
0%      Seconds
A scientist is thinking:
"I am certain that
 centimeters are used
 to measure the length
 of an object."
Centimeter
Liter
Kilograms
Seconds
Unfortunately, it is not the
right answer. Do you want to
try again?
      Geology Question
    The center of the
    Earth is also known
    as the...
5        Point      Make a poll
4
3
         Core
                       Ask an expert
2        Hole
1        Ball            50/50
The folks in
the classroom think:
0% Point
92% Core
6% Hole
2% Ball
A scientist is thinking:
"I am certain that the
 center of the Earth
 is also known as the
 core."
Point
Core
Hole
Ball
Unfortunately, it is not the
right answer. Do you want
to try again?
    Astronomy Question
    In the northern
    hemisphere, the sun
    rises in the...
6
5    South         Make a poll
4
3
     North
                  Ask an expert
2    West
1    East           50/50
The folks in
the classroom think:
2%     South
0%     North
4%     West
92% East
A scientist is
 thinking:
"I am certain that In
 the northern
 hemisphere, the sun
 rises in the east."
South
North
West
East
Unfortunately, it is not the
right answer. Do you want
to try again?
        Math Question
    What number comes
    next ? -1, 2, -4, 8, -16,
7   32, ___
6
5        -64
4                      Make a poll

3
         56
2         64          Ask an expert

1        -56            50/50
The folks in
the classroom think:
90%          -64
2%           56
8%            64
0%           -56
A scientist is thinking:
"I am certain that -64
 should be the next
 number in the list."
-64
56
64
-56
 Unfortunately, it is not the
right answer. Do you want
to try again?
        Astronomy Question
      In Albert Einstein's famous
    formula, E = mc 2 , what does
8   the letter c represent?
7
6
5      Celsius                Make a poll
4      The speed of light
3
2      The force of gravity Ask an expert
1      The size of an atom      50/50
The folks in
the classroom think:
1% The temperature in
   degrees Celsius
95% The speed of light
2% The force of gravity
2% The size of an atom
A scientist is thinking:
"I am certain that In
 Albert Einstein's
 famous formula, E =
 mc2, the letter c
 represents the speed of
 light."
Celsius

The speed of light
The force of gravity
The size of an atom
Unfortunately, it is not the
right answer. Do you want
to try again?
“Congratulations! I see you !”
Let’s continue to
learn more …
       Pre-reading Tasks
1. Warm-up Activities
    2. Background Information
Have you ever
heard of Steven
Hawking ?
Do you know
about Black
Holes ?
Stephen Hawking


Let’s watch a
 one-minute
 video clip.
       Stephen Hawking
   He is a world-renowned British
theoretical physicist. He is known for
his contributions to the fields of
cosmology, especially in the context of
black holes. He has also achieved
success with works of popular science,
including the best seller A Brief
History of Time.
  A Black Hole

A black hole is a
region of space
from which
nothing, including
light, can escape.
          Pre-reading Tasks


While-reading Tasks




 After-reading Tasks
     While-reading Tasks

1. Text Organization
Reading
Time !
  Part              Main Ideas

   1
Paras1-3


   2
Paras4-6

   3       With an informed public, human
Para 7
           civilization will survive.
Find out the
main ideas of
Part 1 and Part 2.
  Part              Main Ideas

   1
Paras1-3
           To make informed decisions
           What can be done to educate the
           about change, the public needs a
           public to understand science ?
   2       basic understanding of science.
Paras4-6

   3       With an informed public, human
Para 7
           civilization will survive.
Want to have
more challenges?
Which part above should these two
points belong to, Part 1 or Part 2 ?

 ① The teaching of science in
 schools is an important way.

 ② Mass media, especially the
 television, is another crucial way.
Part 1 To make informed decisions
about change, the public needs a
basic understanding of science.

① The teaching of science in
schools is an important way.
② Mass media, especially the
television, is another crucial way.
Part 2 What can be done to
educate the public to
understand science ?
① The teaching of science in
schools is an important way.
② Mass media, especially the
television, is another crucial way.
 Do you know the
general elements of
an exposition ?
The general elements
of an exposition:
  the
          supporting      the
central                conclusion
            details
 idea

   1         2            3
Which part do the
following sentences
play separately in
this article ?
the central     supporting        the
   idea         details           conclusion
              To make informed decisions
              about change, the public needs a
              basic understanding of science.

              What can be done to educate the
              public to understand science ?

              With an informed public, human
              civilization will survive.
Does the solar
system have a
center?
If yes, what is it?
It is the same with our
writing. When we write an
exposition, we should have
a central idea ---this is the
center of “the writing solar
system” .
                          the
supporting
                       conclusion
  details

               the
             central
              idea
In this text, the
structure is well-
presented.
To make informed decisions about
change, the public needs a basic
understanding of science.
What can be done to educate the public to
understand science ?
     The teaching of science in schools is an
     important way.
     Mass media, especially the television, is
     another crucial way.
With an informed public, human civilization
will survive.
To make informed decisions about
change, the public needs a basic
understanding of science.
What can be done to educate the public to
understand science ?
     The teaching of science in schools is an
     important way.
     Mass media, especially the television, is
     another crucial way.
With an informed public, human civilization
will survive.
In this way, you are
able to write a well-
organized article, with
ideas clearly
expressed.
          Pre-reading Tasks


While-reading Tasks




 After-reading Tasks
      After-reading Tasks
1. Homework Assignment
 Write an essay on
How Science Changes
     Our Lives
  the
          supporting      the
central                conclusion
            details
 idea
Thank you !

				
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