资源简介

(共49张PPT)
沪教版 四年级
上
Unit 3 How do we use numbers
Period 1 Get ready
Core competences
By the end of the lesson, I will be able to...
talk about numbers in Maths;
do addition and subtraction with numbers.
谈论数字在数学学科中的应用;
用数字做加减法。
1
Lead in
导入环节
3
Practice
知识操练
5
Summary
课堂总结
2
Presentation
新知讲解
4
Production
输出运用
6
Homework
作业设计
01
Lead in
Watch and enjoy
Where can we find numbers
We can see numbers on a clock.
We can see numbers on the price tags (价格标签).
We can see numbers on the keyboard (键盘).
We can see the numbers on the road signs.
We can see numbers in maths class.
Numbers are everywhere in our lives.
02
We can use numbers to count.
Presentation
Why do we need numbers
How can we use them to count Can you say them in English
Let's count
one
two
three
four
five
six
seven
eight
nine
ten
Let's count
eleven
twelve
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen
twenty
Let's learn
Think and put the numbers into two groups.
2
4
6
8
10
12
14
16
18
20
1
3
5
7
9
11
13
15
17
19
odd numbers
奇数
even numbers
偶数
Let's learn
Let's learn
+ =
- =
plus
equal
minus
answer
plus
加; 加号
minus
减; 减号
equal
等于
answer
答案; 回答
Let's learn
02
Presentation
Listen, point and say
plus
equal
minus
answer
odd numbers
even numbers
Listen and say
1. There are some numbers on the blackboard. One, three and five are odd numbers. Two, four and six are even numbers.
Listen and say
3. This is a minus. What is fourteen minus one The answer is thirteen.
2. This is a plus. Twelve plus seven equals nineteen.
Let's learn
plus
加
符号“加号”
minus
减
符号“减号”
Let's learn
e.g. I don’t know the answer. (名词)
我不知道答案。
Can you answer the question (动词)
你能回答这个问题吗
answer
名词
动词
答案
回答
Read and circle
Circle the correct numbers.
1 Ten plus two equals twelve.
10-1=9
10+2=12
2 This is an even number.
4
9
3 This is an odd number.
5
6
4 Ten minus two equals eight.
6+2=8
10-2=8
Watch and learn
plus
minus
equal
answer
odd numbers
even number
加;加号
减;减号
等于
奇数
回答
偶数
Play a game
Read and find
16
11
0
5
7
9
13
18
6
4
Can you find the odd numbers
03
Practice
Read and find
16
11
0
5
7
9
13
18
6
4
Can you find the even numbers
Listen and choose
9
13
Listen and choose
12
20
Listen and choose
9
7
Listen and choose
6
9
Listen and choose
19
18
Listen and choose
12
14
Listen and complete
There are some _________on the __________. One, three and five are _____numbers. Two, four and six are _______numbers.
numbers
blackboard
odd
even
This is a ______. Twelve plus seven ________ nineteen.
plus
equals
This is a _______. What is fourteen minus one The _______ is thirteen.
minus
answer
04
Production
Look and guess
Look at headings (标题) and guess what the poem is about.
Look and guess
Look at all the clothes!
Ten hats!
Tanya loves hats.
She has ten hats.
There are three hats for rainy days
and seven hats for sunny days.
Seven T-shirts!
Leon’s favourite clothes are his T-shirts. He has seven T-shirts. Four T-shirts are blue, and three T-shirts are white.
Look and guess
Ten hats!
Seven T-shirts!
I think it’s about numbers.
Calculate and say
Fourteen minus seven equals seven.
Calculate and say
Nine plus three equals twelve.
Calculate and say
Thirteen minus five equals eight.
Calculate and say
Seven plus six equals thirteen.
Calculate and say
Eleven plus four equals fifteen.
Calculate and say
Eight minus two equals six.
Words & phrases
plus; equal; answer; minus; odd numbers; even numbers
Sentences
… plus … equals …
… minus … equals …
This is an even/odd number.
01
02
05
Summary
06
Homework
Must do:
Talk about numbers in maths.
Play Calculating game with your partner.
Choose to do:
Find more numbers in our daily life.
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