Teen Numbers: Spotting Teens with Ease!

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Learning Objective

At the end of the lesson you will be able to recognise and name teen numbers (11 to 19) and explain what makes them special.

What do you already know about teen numbers?

What are Teen Numbers?

Teen numbers are the numbers from 11 to 19. They come right after ten and before twenty.

Finding Teens on the Number Line

On a number line, teen numbers are all the numbers after 10 and before 20. Let’s locate them together!

How Are Teen Numbers Made?

Teen numbers are made up of one ten and some more ones. For example, 13 means one ten and three more: 10 + 3 = 13.

Spot the Teen Number!

Look at these numbers: 9, 15, 21, 18. Which numbers are teens?

Counting Teens in Everyday Life

At School

How many students in your class? Could it be a teen number?

How many crayons do you have? Is it a teen number?

At Home

Reflect: Why are Teens Special?

Teen numbers help us learn about place value. Can you think of a teen number and how it is made?

Write down 3 things you learned in this lesson.

Write down 2 things you want to know more about.

Ask 1 question about something you haven't quite understood yet.