Vocabulary
Numbers
Introduction

Look at the picture and listen to the sentences.
Students are having a party at school.
It's Laura’s birthday.
Her birthday is on the 3rd (third).
Now answer the questions.
1. What are the students doing?
2. Who’s birthday is it?
Presentation
Eric: Surprise!
Laura: Oh! Thank you so much!
Eric: Today is your birthday. It’s on the 3rd (third), right?
Laura: Yes, that’s right.
Eric: How old are you now?
Laura: I'm 29 (twenty-nine).
Eric: Great! Let's sing Happy birthday, then.
Meaning
We use cardinal numbers to talk about quantity, age, and numbers in general.
We use ordinal numbers to talk about order, position, and dates.
Anna is 29. Her birthday is on the 3rd.
• Is 29 a cardinal or an ordinal number?
• Does 29 tell us age or order?
• Is 3rd a cardinal or an ordinal number?
• Does 3rd tell us age or date?
Column
Practice
1. Fill in the blanks with affirmative form.
Choose the correct answer.
1. What is the ordinal form of 23?
2. Anna’s birthday is on the 9th. How do we say 9th?
3. What is the correct spelling of 12th?
4. Which is the correct form?
5. Which sentence is correct?
Listen and choose the correct answer.
1. Listen. What number do you hear?
2. Listen. What date do you hear?
3. Listen. Which word do you hear?
4. Listen. What ordinal number do you hear?
5. Listen. Which sentence do you hear?
Production
Now talk about you.
Use numbers to answer the questions.
- How old are you?
- When is your birthday?
- How old is your (dad, mom, brother, sister, etc.)?