# Calculate probabilities from equally likely events

In this lesson, we will learn how to find the probability of a single, equally likely event using fractions, in a range of contexts including spinners, dice and counters. We will also learn how to use probability notation correctly.

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.Alice is labelling the probability scale. Can you spot her mistake?

1/3

Q2.Alice is labelling the probability scale.Which phrases are missing?

2/3

Q3.There are 12 doughnuts in a box. Which letter represents selecting a donut with pink icing?

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.Alice is labelling the probability scale. Can you spot her mistake?

1/3

Q2.Alice is labelling the probability scale.Which phrases are missing?

2/3

Q3.There are 12 doughnuts in a box. Which letter represents selecting a donut with pink icing?

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:

# Calculate probabilities from equally likely events

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

Q1.

1/3

Q2.

2/3

Q3.Dexter, Rosie and Sunil are playing a game with a six-sided die. Dexter wins if he rolls an even number. Rosie wins if she rolls a number greater than 4. Sunil wins if he rolls a 5. Which player is more likely to win?

3/3

Quiz:

# Calculate probabilities from equally likely events

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

Q1.

1/3

Q2.

2/3

Q3.Dexter, Rosie and Sunil are playing a game with a six-sided die. Dexter wins if he rolls an even number. Rosie wins if she rolls a number greater than 4. Sunil wins if he rolls a 5. Which player is more likely to win?

3/3

# Lesson summary: Calculate probabilities from equally likely events

## Time to move!

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

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga