# Odd or even?

In this lesson, we will investigate the algebraic representations of odd and even numbers.

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!

1/5

2/5

Q3.Will the answers to the puzzle above always be odd, even, or does it depend on the starting number?

3/5

4/5

Q5.Will the answers to the puzzle above always be odd, even, or does it depend on the starting number?

5/5

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!

1/5

2/5

Q3.Will the answers to the puzzle above always be odd, even, or does it depend on the starting number?

3/5

4/5

Q5.Will the answers to the puzzle above always be odd, even, or does it depend on the starting number?

5/5

# 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:

# Odd or Even?

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

Q1.Is the value of 2n always odd, always even, or either?

1/5

Q2.Is the value of 4n - 2 always odd, always even, or either?

2/5

Q3.Is the value of 3n + 1 always odd, always even, or either?

3/5

Q4.What operation could I perform to 4n + 1 to make it always even?

4/5

Q5.What operation could I perform to n + 4 to make it always even?

5/5

Quiz:

# Odd or Even?

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

Q1.Is the value of 2n always odd, always even, or either?

1/5

Q2.Is the value of 4n - 2 always odd, always even, or either?

2/5

Q3.Is the value of 3n + 1 always odd, always even, or either?

3/5

Q4.What operation could I perform to 4n + 1 to make it always even?

4/5

Q5.What operation could I perform to n + 4 to make it always even?

5/5

# Lesson summary: Odd or even?

## 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