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(共38张PPT)
Unit 5 How inventions change our lives
Period 4 Extend
沪教版（深圳）六年级
上
1
Core competences
核心素养目标
3
Presentation
新知讲解
5
Summary
课堂总结
2
Lead in
导入环节
4
Practice
知识操练
6
Homework
作业设计
01
Core competences
By the end of the lesson, I will be able to...
understand the saw and its inventor Lu Ban;
be proud of the great wisdom and creativity of ancient Chinese people.
了解锯子的诞生及其发明者鲁班；
为中国古代人民的智慧与创造力感到自豪。
02
Lead in
Look and learn
Lu Ban was a famous inventor and carpenter in ancient China. He created many tools that were very useful for daily life.
Lu Ban is also called “the Father of Carpentry” in China.
02
Lead in
Look and learn
The ink marker is said to be invented by Lu Ban.
It helped carpenters draw straight lines on wood.
Ink Marker
Lu Ban’s Ruler
It is said that Lu Ban invented an wooden tool. It was used to measure wood for buildings and furniture.
Cloud Ladder
The cloud ladder is a big wooden ladder
on wheels made by Lu Ban.
It is used to climb city walls for wars.
02
Lead in
Look and learn
Stone Mill
The stone mill was a stone tool made by Lu Ban. Before it, people mainly pounded grain into powder hard. After it, people could get powder by turning the millstone more easily.
Plane
The plane is an old tool.
Carpenters used it to make wood smooth.
03
Presentation
Look and guess
Now we’re going to learn about
another invention invented by Lu Ban.
Let’s look and guess.
03
Presentation
Look and guess
What is it
a leaf/
leaves
a saw
What do they have in common
They have teeth in common.
03
Presentation
Listen and read
Lu Ban and the saw
Lu Ban was a famous inventor in ancient China. He invented a lot of useful tools.
有用的；
实用的
工具
03
Presentation
Listen and read
One day, when Lu Ban was at work on a mountain, a leaf cut his finger.
Lu Ban thought, “How could such a small leaf hurt my finger ”
at work 在工作
cut/cut one’s finger
割到某人的手指
hurt/hurt one’s finger
伤到某人的手指
03
Presentation
Listen and read
He looked at the leaf carefully. There were many teeth on the leaf, and the teeth were sharp.
“Could I make a tool with teeth like these It could cut things easily,” Lu Ban said to himself.
sharp
锋利的；刺耳的
say to oneself
自言自语
03
Presentation
Listen and read
Soon Lu Ban made a saw. It was the first saw in the world.
People are still using it today.
03
Presentation
Listen and read
Lu Ban was not the only ancient Chinese inventor.
Other ancient Chinese people invented many great things, such as cuju and paper. Many have a great influence around the world.
have/has/had a great influence
有着巨大的影响
around the world
全世界
03
Presentation
Ask and answer
Who was Lu Ban
What happened to Lu Ban on the mountain
1
2
Lu Ban was a famous inventor in ancient China.
A leaf cut his finger.
03
Presentation
Ask and answer
What did he find on the leaf
What did Lu Ban finally invent
3
4
There were many sharp teeth on the leaf.
Lu Ban invented the first saw in the world.
03
Presentation
Read and complete
Lu Ban was a famous inventor. One day, a leaf ________ his finger. He saw ____________________ on the leaf. Lu Ban then made _________. Other ancient Chinese people invented many great things. Many of these inventions have a great influence ____________________.
cut
many sharp teeth
a saw
around the world
04
Practice
Read and match
A. Lu Ban was at work on a mountain.
D. A leaf cut his finger.
B. There were many sharp teeth on the leaf.
E. Soon Lu Ban made a saw.
C. People are still using it today.
A
D
B
E
C
04
Practice
Look and retell
Please try to retell the story of Lu Ban.
Who wants to have a go
04
Practice
Look and retell
04
Practice
Look and retell
04
Practice
Think and say
What changes took place before and after
the invention Think it about!
04
Practice
Think and say
Before the invention of the saw, people ___________________________________
___________________________________.
After the invention of the saw, people ___________________________________
___________________________________.
cut wood with an axe. It was slow and hard to make smooth boards.
could cut wood easily and quickly. It
saves more effort.
04
Practice
Think and say
Before the invention of paper, people ___________________________________
___________________________________.
After the invention of paper, people ___________________________________
___________________________________.
wrote on bamboo or silk. It’s difficult and slow for writing.
writes easily and fast.
04
Practice
Think and say
Before the invention of carpenter’s square, people ________________________________
___________________________________.
judged angles by eyes, so wood and buildings were easy to tilt.
Before the invention of carpenter’s square, people ________________________________
___________________________________.
measures right angles accurately.
04
Practice
Show and say
Show a photo of an invention you like to the classmates.
Describe how the invention changed people’s lives
04
Practice
Do you know any other Chinese inventions
that have a great influence around the world
Let’s explore
Let’s explore
04
Practice
Si Nan
movable type printing
paper
gun powder
These inventions that we have learned changed the world.
04
Practice
Cuju is an ancient Chinese ball game. People used leather to make the ball. It became popular in Tang and Song dynasty. Cuju is the early form of football.
Let’s explore
04
Practice
China is a great ancient Chinese invention. Ancient people made it by burning kaolin clay at a high temperature. People all over the world like it very much.
Let’s explore
04
Practice
Ancient Chinese people mastered advanced ship-building technology. They built large and strong sailboats. The sailboats could sail to foreign countries for trade and culture.
Let’s explore
04
Practice
Ancient people raised silkworms and got silk threads. Then they wove soft and shiny silk cloth. Silk travelled to other countries along the Silk Road. It changed people’s clothes.
Let’s explore
04
Practice
The inventions show the great wisdom and creativity of ancient Chinese people.We should be proud of them and keep the spirit of hard work to make the world better.
Let’s explore
04
Practice
Think and summarize
How do inventions change our lives
Inventions make our lives easier.
Inventions make our travel faster.
04
Practice
How do inventions change our lives
Simple machines are used every day.
Some Chinese inventions have a great influence around the world.
Think and summarize
05
Summary
1.Words and Phrases:
saw, at work, cut one’s finger, sharp, have a great influence,
around the world;
2.Sentences:
Lu Ban was a famous inventor in ancient China.
There were many teeth on the leaf, and the teeth were sharp.
It was the first saw in the world.
Many have a great influence around the world.
06
Homework
Must do:
1. read again Lu Ban and the saw on Page 58 to 59;
2. act Lu Ban and the saw on Page 58 to 59.
Choose to do:
Find out more about inventions at home and abroad from books and the Internet, then share them with your friends.
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