# Indices and Radicals

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:

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# 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.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Indices and Radicals 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

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Indices and Radicals 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

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## Time to move!

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For 5 mins...

Move around:
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On the spot:
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