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Creative Inventions A pencil An eraser A pencil with an eraser.

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Presentation on theme: "Creative Inventions A pencil An eraser A pencil with an eraser."— Presentation transcript:

1

2 Creative Inventions

3 A pencil An eraser A pencil with an eraser

4 There is a piece of rubber on one end of it. We can use this pencil to and pencil marks from paper. erase write

5

6

7 Hyman Lippman, a painter, often had trouble finding his eraser.had trouble When he finally found his eraser, he could not find his pencil.found But there were times when he found his pencil; he just couldn’t find his eraser. In order to solve this problem, he invented a pencil with an eraser on one end of it.solve invented Reading

8 A. had trouble : e.g. She had trouble had problems using chopsticks.

9 a. They had trouble b. She had trouble speaking English. moving the table.

10 c. d. He had trouble She had trouble playing the piano. riding a bicycle.

11 B. found: the past tense of Q: What did the man find under the car? A: He found a dog. “find” -to discover someone or something that was lost.

12 C. solve: to find a solution to something that is causing difficulties. He can ’ t solve the math question.

13 D. invent : to make something for the first time. Alexander Graham Bell invented the telephone. A.G. Bell deaf 聾的 a hearing aid 助聽器 vocabulary

14 QuestionsAnswers Hyman Lippman. (A painter) He had trouble finding his eraser and pencil. He invented a pencil with an eraser on one end of it. or (He added an eraser to a pencil.) Who? What problem? The solution? Fill in the chart of the Reading

15 Questions: (1)Was Hyman Lippman he a careful person? (2) Was his invention very creative? (3) Are there any other way to solve his problem? Answers: (1)No, he wasn ’ t. Because he often had trouble finding his pencil and eraser. (2)Yes, it was very creative. (3) Group work

16 Think! Are there any other ways to solve his problem? drawing writing

17 shoes wheels skating shoes

18 + = + = e.g. If you add an eraser to a pencil, you get a pencil with an eraser. e.g. If you add wheels to shoes, you get skating shoes. If you add A to B, you get C.

19 tape dispenserice-cream cola papaya milk hat umbrellalollipop Discuss and find out how products were invented. Group work

20 + = + = + = + =

21 cola ice cream

22 Hat umbrella

23 lollipop candy stick

24 tape dispenser tapeknife

25 papaya milk

26 Assignment Compare the two inventors, Willis Carrier and Liu Xing-ching, and their inventions. InventorInventionFunction Willis Carrier(American) (1876~1950) 劉興欽 Liu Xing-ching (Chinese) (1934~) Air conditioner invented in 1902. Collectable water umbrella invented in 1972. To make the air in a room, car etc. stay cool. To avoid rainwater to wet the house

27 A nswer the following questions. e.g. Which is more complex, the air conditioner or the collectable water umbrella? The air conditioner is more complex(than the collectable water umbrella) 1. Which invention is better, the air conditioner or the collectable water umbrella? Why? __________________________________________________ 2. Which is the more useful of the two? __________________________________________________ 3. Which is more important to you, the air conditioner or the collectable umbrella? Why? ________________________________________________________

28 ~End~Thanks!!


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