# Factor pairs

In this lesson, we will be learning how to work systematically to identify the correct number of factors and factor pairs for given numbers, using the notion of factor bugs to help us. We will then develop our learning further by proving that square numbers have an odd number of factors.

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Finding Factor Pairs Quiz

Creating factor bugs was fun! You have done a super job during the lesson but it is now time to see how confident and familiar you are with factor pairs. Read all questions carefully but if you find yourself becoming unsure, please revisit the lesson video and find the information you missed. Good luck as always!

Q1.Which of the following pairs are NOT factor pairs for the number 48?

1/5

Q2.During the lesson, we grouped 20 children into equal sized groups. How many different ways of did we find of grouping them equally?

2/5

Q3.Lisa began to create her factor bug for the number 24 but was unable to complete it before the end of the lesson. How many factor pairs is she missing?

3/5

Q4.In the image below, you can see the first 3 squared numbers. What would the 6th squared number be in the sequence?

4/5

Q5.Which of the following is not a squared number?

5/5

Quiz:

# Finding Factor Pairs Quiz

Creating factor bugs was fun! You have done a super job during the lesson but it is now time to see how confident and familiar you are with factor pairs. Read all questions carefully but if you find yourself becoming unsure, please revisit the lesson video and find the information you missed. Good luck as always!

Q1.Which of the following pairs are NOT factor pairs for the number 48?

1/5

Q2.During the lesson, we grouped 20 children into equal sized groups. How many different ways of did we find of grouping them equally?

2/5

Q3.Lisa began to create her factor bug for the number 24 but was unable to complete it before the end of the lesson. How many factor pairs is she missing?

3/5

Q4.In the image below, you can see the first 3 squared numbers. What would the 6th squared number be in the sequence?

4/5

Q5.Which of the following is not a squared number?

5/5

# Lesson summary: Factor pairs

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga