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《Lesson 4 Understanding》PPT课件优质课下载
Dream a dream？ Can you acquire knowledge ?
1.Using the Internet.
2.Discussing topics with friends.
3.Having a clear visual explanation.
4.Thinking about related things.
Answers from my friends:
asking questions
Answers from teachers:
thinking
reading
observing
studying facts
doing experiments
“Who questions much, shall learn much, and remember much.”
Francis Bacon(1561-1626)
Q: How can we acquire knowledge and understanding ?
From persons in history
Galileo Galilei (1564-1642)
In the 17th century, people believed in religion.
G.G. invented the first telescope in the world to observe the universe and proved that “the earth is not the center of the universe.”
“All truths are easy to understand
once they are discovered;
the point is
to discover them.”
But it was against views from Aristotle and he was put into prison.