(1)Watch activity one .

a. Look and listen.

b. Learn : fifteen. Twenty .

c. Listen and repeat.

(2) T: Do you want to know more about the numbers ?

Let's learn M5U1 There are only nineteen crayons.

Step 3.Text learning

1) Listen and answer the question:

A: How many crayons are there in the boxes?

B: There are only nineteen crayons .

Can you count them in English?

2) Let's count （展示幻灯片，讲解数字13--19）

3) 学生练习数13--19

4) Read and answer : How many children are there in the class ?

How many crayons did Ms Smart buy yesterday ?

5) listen and repeat.

6) Read the text by groups.

Step 4. Practice

(1) Activity three

(2) Activity four

Step 5 Task completion

Talk about quantity with "there be " in the class .