内容正文:
Bottle cap.
Tooth paste.
string.
will.
glue.
recycle.
Flow pot.
pushing.
stick.
sov.
Great ideas, clever hands. Some paper to clothes, all things are waiting in boxes and box. Throw the more way from bottles to cat, all things are waiting on tables and floors. Let's use them again. Let you ideas fly high and free. Use your clever hands. Make something with me.
Unit 4
We can do it!
( Hit it big + Let's explore)
Listen and chant
Whose inventions are these?
They are the kids' inventions.
Review
What does Daming make for the plants?
Review
He makes a watering bottle for the plants.
What do they make for the birds?
Review
They make a bird feeder for the birds.
Review
Work in groups and answer
What are the problems(问题)?
Look and say
What's the problem?
Cats leave lots of hair everywhere.
We can’t clean it easily.
Look and say
What's the problem?
toothpaste
We can’t use all the toothpaste, so we waste it.
Look and say
What's the problem?
回收利用
We have too much mixed rubbish to recycle.
Look and say
What's the problem?
flowerpot
Pets often knock down flowerpots and break the plants.
Choose, think and share
What problem do you want to solve?
解决
I want to solve...
It will...
First...
Next...
Then...
Last...
How are you going to make it?
Choose one problem. Think and share.
How will your invention solve the problem?
Design
What do you need to make it?
stick
bottle cap
pushpin
string
glue
Design your invention.
Write and make
Take ice cream sticks and pushpins.
Connect the sticks with pushpins.
Prepare ice cream sticks for the long arm.
Cut the middle out of two bottle caps.
Glue the bottle caps to both ends.
Finish the pet hair cleaner.
Write the steps and make your invention.
Share in class
Tell the class about your invention.
Look and say
What's this?
wheel
Read and answer
Who do some people in China think invented the wheel?
改变世界的
old---oldest
Huangdi, or the Yellow Emperor.
确定地,确切地
Read and answer
Why is the wheel a world-changing invention?
It helps people solve many problems and makes life easier for us.
Work in pairs
Work in pairs. Find out about other inventions.
How did it change the world?
Who invented it and how?
Thank you
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