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(共19张PPT)
3
How do we use numbers
Period 1
Numbers in Maths
How many children can you see in the picture
What are they doing
Can you see the numbers on their T-shirts
Look and answer.
A. Look at the picture.
Why do we need numbers
Watch and say.
B. Watch the video.
Why do we need numbers
Look and say.
We use numbers to count. We use numbers every day.
They are important. We can’t live without numbers.
Where else can you see numbers
Think and say.
2 + 4 = 6
Numbers are everywhere in our lives.
Look and say.
1
2
3
4
5
6
7
8
9
10
12
13
14
19
11
15
17
16
18
20
+
-
=
What can you see
Look and say.
2 + 4 = 6
Can you find numbers in these pictures
A. Listen. Then point and say.
3
Think and put the numbers into groups.
1
2
3
4
5
6
7
8
9
10
12
13
14
19
11
15
17
16
18
20
2
4
6
8
10
12
14
16
18
20
odd numbers
even numbers
Look and say.
1
3
5
7
9
11
13
15
17
19
My favourite number is ...
It’s an ...
Listen and choose.
+ =
- =
odd numbers
even numbers
Look and say.
Listen and follow.
12
7
19
14
1
13
2
4
6
8
10
12
14
16
18
20
1
3
5
7
9
11
13
15
17
19
Listen, read and spell.
+ =
- =
odd numbers
even numbers
12
7
19
14
1
13
plus
equal
minus
answer
2
4
6
8
10
12
14
16
18
20
1
3
5
7
9
11
13
15
17
19
Can you match
odd numbers
even numbers
plus
minus
equal
answer
+
-
13
=
8
8-2=6
2
17
Play a game.
even numbers
plus
equal
What’s missing
answer
minus
odd numbers
Play a game.
Eight minus five.
Can you try
Three is the answer!
It’s an odd number.
Three plus nine.
Can you try
Twelve is the answer!
It’s an even number.
Let’s chant.
B. Circle the correct answer.
Circle. Then point and say.
Think and say.
... minus/plus ... equals ...
... is an ... number.
3+6 =
12-9=
+
What do you know about numbers
We use numbers in Maths.
3+5=8
7-5=2
4
2
6
1
3
5
odd numbers
even numbers
plus
minus
Assignments:
1. 朗读Unit 3 P22的内容。
2. 抄写核心词汇。
3. 完成《活动手册》PP. 20-21的活动。
4. 预习Unit 3 PP. 23-25的内容。
3
THANK YOU

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