In this lesson, we will recap our knowledge of surds. We will rewrite surds in their simplest form and recall how to rationalise the denominator. We will also practise organising surds in order of ascending size.

# 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:

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Simplify fully √𝟕2

1/7

Q2.Who is correct?

2/7

Q3.Jack and Jill are arguing about surds. Jack says: √4 x √12 = √48. Jill says: √4 x √12 = 3√4. Who is correct?

3/7

Q4.Simplify √10 - √3

4/7

Q5.Simplify, if possible: √8 + √50

5/7

Q6.Which of the following is NOT a surd?

6/7

Q7.Simplify: 15√14 ÷ 3√2

7/7

Quiz:

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Simplify fully √𝟕2

1/7

Q2.Who is correct?

2/7

Q3.Jack and Jill are arguing about surds. Jack says: √4 x √12 = √48. Jill says: √4 x √12 = 3√4. Who is correct?

3/7

Q4.Simplify √10 - √3

4/7

Q5.Simplify, if possible: √8 + √50

5/7

Q6.Which of the following is NOT a surd?

6/7

Q7.Simplify: 15√14 ÷ 3√2

7/7

# Lesson summary: Indices and Radicals

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Dance