# Find the nth term of a quadratic sequence

In this lesson, we will find the nth term of a quadratic sequence by using a table of values and finding the second difference between terms.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What type of numbers are 1, 8, 27, 64 and 125?

1/3

Q2.What are the first 5 terms of the sequence with nth term 2n² + 1?

2/3

Q3.What are the first 5 terms of the sequence with nth term n³ - 2?

3/3

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What type of numbers are 1, 8, 27, 64 and 125?

1/3

Q2.What are the first 5 terms of the sequence with nth term 2n² + 1?

2/3

Q3.What are the first 5 terms of the sequence with nth term n³ - 2?

3/3

# 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:

# Find the nth term of a quadratic sequence

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

Q1.What is the nth term of the sequence 2, 11, 26, 47, 74, …?

1/3

Q2.What is the nth term of the sequence 13, 10, 5, -2, -11, …?

2/3

Q3.What is halved to find the n² coefficient?

3/3

Quiz:

# Find the nth term of a quadratic sequence

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

Q1.What is the nth term of the sequence 2, 11, 26, 47, 74, …?

1/3

Q2.What is the nth term of the sequence 13, 10, 5, -2, -11, …?

2/3

Q3.What is halved to find the n² coefficient?

3/3

# Lesson summary: Find the nth term of a quadratic sequence

## Time to move!

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

For 5 mins...

Move around:
Jog

On the spot:
Chair yoga