Numbers 1–20 & How Old Are You?
Count. Say your age. Share phone numbers.
Count 1 to 20. Say your age. Read phone numbers out loud.

Look & say · Step 1
5 minGet ready
Hold up your hand. Count 1, 2, 3, 4, 5 with the teacher.
Look around the room. Find 3 numbers (clock, page, phone).
Whose birthday is soon? Stand up if your birthday is this month.
Words to learn · Step 2
8 minNew words today
one
1
"I have one brother."
two
2
"Two coffees, please."
three
3
"Three days a week."
four
4
"Four people in my family."
five
5
"It's five o'clock."
six
6
"Six eggs, please."
seven
7
"Seven days a week."
eight
8
"I get up at eight."
nine
9
"Nine students in class."
ten
10
"Ten minutes, please."
eleven
11
"Eleven o'clock."
twelve
12
"My sister is twelve."
thirteen
13
"He is thirteen years old."
fourteen
14
"Fourteen days."
fifteen
15
"Fifteen minutes."
sixteen
16
"She is sixteen."
seventeen
17
"Seventeen books."
eighteen
18
"I'm eighteen years old."
nineteen
19
"Nineteen students."
twenty
20
"I'm twenty years old."
birthday
The day you were born
"Happy birthday!"
phone number
Numbers to call someone
"What's your phone number?"
Activate · Personalise · Recycle
Use these words now
Make each sentence true for you. Say it aloud to a partner.
one
"For me, one is …"
Finish the sentence with your own idea.
seventeen
"For me, seventeen is …"
Finish the sentence with your own idea.
two
"For me, two is …"
Finish the sentence with your own idea.
You'll meet these words again in Reading, Listening, Speaking and Homework.
Tap an item on the left, then tap its match on the right.
Sounds & saying · Step 3
5 min13 vs 30 — hear the difference
Numbers ending in '-teen' have a strong second syllable: thir-TEEN. Numbers ending in '-ty' are flat: THIR-ty.
- • thirteen / thirty
- • fourteen / forty
- • fifteen / fifty
- • sixteen / sixty
Language focus · Step 4
10 minHow old are you? — I'm ___ years old.
Quick rule
How old are you? — I'm ___ years old.
Ask and answer about age with 'I'm'.
- You can say the full phrase or just the number.
How old are you?
I'm 25 (years old).
How old is your sister? — She's 12.
I'm twenty.
Question 1.How ___ are you?
Question 2.I'm 18 ___ old.
Question 3.She ___ 30.
Quick check 1.I'm ___ years old. (number 12)
Quick check 2.How old ___ they?
Reading · Step 5
7 minMy class
Hi! I'm Leo. I'm 19 years old. 🎓 My sister Mia is 12. My brother Sam is 5. We are three.
Question 1.How old is Leo?
Question 2.How old is Mia?
Q1.Sam is 5 years old.
Q2.Leo is older than Mia.
Q3.There are four people.
Listening · Step 6
10 minOn the bus
Listening audio
Tap play to listen. Replay as many times as you need.
Lin
Hi! How old are you?
Theo
I'm seventeen. And you?
Lin
I'm eighteen. What's your phone number?
Theo
It's oh-seven-five-five-two-three.
Question 1.How old is Theo?
Question 2.How old is Lin?
Practice · Step 7
8 minChoose the word
Question 1.I'm ___ years old. (20)
Question 2.She ___ ten.
Question 3.How ___ are they?
Question 4.My brother is ___. (5)
Q1.Write the word: 7
Q2.Write the word: 12
Q3.Complete: How ___ are you?
Survival English · Step 8
4 minSpeaking — Say your age clearly
Task
Answer 'How old are you?' in 5 seconds.
Strategy
Stress the syllable: thir-TEEN sounds different from THIR-ty.
Example
I'm twenty-one years old.
Writing · Step 9
5 minWrite a little
Your task
Write 3 sentences: your age, a friend's age, and a family member's age.
Show model answer
I'm 24. My friend Lola is 22. My brother is 17.
Speaking · Step 10
12 minTalk together
Stand up. Ask 4 classmates: 'How old are you?' Answer with a full sentence. Write down their ages.
Useful phrases
- • How old are you?
- • I'm ___ years old.
- • Really?
- • Me too!
- AHow old are you?
- B_______________
- ACool! What's your phone number?
- B_______________
Homework · Step 11
Take-homePractice at home
Count from 1 to 20 out loud 3 times.
Write the ages of 3 people in your family.
Recap · Step 12
3 minWhat you learned
- 🔢 Count from 1 to 20 in English.
- 🎂 Ask: 'How old are you?'
- 💬 Answer: 'I'm ___ years old.'
- 🗣️ Hear the difference between -teen and -ty.
- 📞 Read phone numbers one digit at a time.
