Time-travel maths quest: probability

Quick answer

Probability is about how likely something is to happen. You can use words like "certain", "impossible", "likely", and "unlikely" to describe the chances of events happening.

Learning outcome

By the end of this page, you will be able to describe the chance of events using words like certain, impossible, likely, and unlikely.

• You can sort events from most likely to least likely
• You can explain why some things happen more or less often
• You can use clocks and calendars to predict when things might happen
• You can play a time-travel game to practice probability

Why this matters

Probability helps us understand how likely or unlikely something is to happen. It's like being a detective who guesses what will happen next. This skill helps you:

• Plan your day better (like knowing when to bring an umbrella)
• Play games fairly (like guessing which side a coin will land on)
• Understand stories (like knowing which character will win in a race)
• Make smart choices (like picking the right time to go to the park)

How it works

Probability is all about chance. Here's how to think about it:

1. Certain: Something that always happens
2. Impossible: Something that never happens
3. Likely: Something that usually happens
4. Unlikely: Something that rarely happens

Imagine you're on a time-travel adventure. You can use clocks and calendars to help you understand how often things happen!

Examples you can see

Let's explore some fun examples:

On a Clock

Think about a clock face. What's more likely to happen?

• It's 3 o'clock in the afternoon - likely
• It's 3 o'clock in the middle of the night - unlikely
• It's 12 o'clock - possible (it happens twice a day)
• It's 13 o'clock - impossible (on a 12-hour clock)

On a Calendar

Look at your calendar:

• It's your birthday in the month - likely (it happens once a year)
• It's the 32nd day of a month - impossible
• It's a Tuesday - likely (it happens 52 times a year)
• It's a Monday in July - possible (it can happen)

Time-Travel Adventure

Imagine you're a time-traveller. You have a magic clock that shows the future. What events do you think are certain, impossible, likely, or unlikely?

• Certain: The sun will rise tomorrow
• Impossible: You will travel back to 100 BC and find a smartphone
• Likely: You will find a dinosaur in the year 2000
• Unlikely: You will meet a friendly alien

Try it as a mini adventure

Let's go on a time-travel probability quest! You are a time-traveller who needs to collect clues about chance. Here's your mission:

Time-Travel Probability Quest

1. Step 1: Look at your clock and write down 3 things that are certain to happen today
2. Step 2: Think of 3 things that are impossible to happen today
3. Step 3: List 3 things that are likely to happen today
4. Step 4: Write down 3 things that are unlikely to happen today
5. Step 5: Share your list with a parent or friend

Real-World Example: Birthday Party Planning

Imagine planning a birthday party. You want to know what's likely to happen:

• Likely: People will come to the party
• Unlikely: A rainbow will appear while people are eating cake
• Impossible: The party will happen on a Sunday when everyone is at work
• Certain: The party will start at the time you planned

Time-Travel Game: Probability Cards

Make a deck of cards with different time events:

• Certain: The sun will rise tomorrow
• Likely: You will wake up in the morning
• Unlikely: You will find a gold coin on the ground
• Impossible: You will travel to Mars today

Shuffle the cards and take turns drawing them. Say whether each event is certain, impossible, likely, or unlikely.

Common mistakes

• Mistake: Thinking that "unlikely" means "impossible"

  Why it happens: Children mix up the words because they sound similar

  Fix: Remember: impossible = never happens, unlikely = rarely happens

• Mistake: Confusing "likely" and "certain"

  Why it happens: Both describe events that usually happen

  Fix: Certain = always happens, likely = usually happens

• Mistake: Thinking all events are equally likely

  Why it happens: Children don't understand that some things happen more often

  Fix: Use real examples like "it's more likely to rain in winter than summer"

• Mistake: Not using clocks and calendars to help understand time

  Why it happens: Children don't connect probability to real time

  Fix: Practice with clocks and calendars to see patterns

Parent and carer guide

Helping your child understand probability is fun and easy! Here's how:

1. Ask questions: "What do you think is most likely to happen today?"
2. Use real examples: "It's likely to rain tomorrow, so we should pack an umbrella"
3. Play games: Create a time-travel probability game at home
4. Check clocks: Use your clock to show when events happen
5. Look at calendars: Notice patterns in your calendar
6. Be patient: It takes time to understand chance
7. Encourage curiosity: Let them ask "why" and "what if"
8. Keep it light: Don't make it feel like a test
9. Connect to daily life: Use your child's interests
10. Notice progress: Celebrate when they use probability words correctly

Practice questions

1. Is it certain, impossible, likely, or unlikely that you will wake up tomorrow?
2. Is it certain, impossible, likely, or unlikely that you will eat pizza for breakfast?
3. Is it certain, impossible, likely, or unlikely that the sun will rise in the east?
4. Is it certain, impossible, likely, or unlikely that you will find a 10-pound coin on the ground?
5. Is it certain, impossible, likely, or unlikely that you will have a maths lesson today?
6. Is it certain, impossible, likely, or unlikely that you will see a dinosaur in the park?
7. Is it certain, impossible, likely, or unlikely that it will snow in July?
8. Is it certain, impossible, likely, or unlikely that you will go to school tomorrow?
9. Is it certain, impossible, likely, or unlikely that you will meet a famous person today?
10. Is it certain, impossible, likely, or unlikely that you will finish your homework tonight?

Answers

1. Likely
2. Unlikely
3. Certain
4. Impossible
5. Likely
6. Impossible
7. Unlikely
8. Likely
9. Unlikely
10. Likely

FAQ

What is probability?

Probability is how likely something is to happen. It's like guessing what will happen next.

What are the words we use for probability?

We use words like certain, impossible, likely, and unlikely to describe chance.

Can probability be wrong?

Yes! Probability is a guess, so it can be wrong. But it helps us make better decisions.

How can I practice probability?

You can practice by looking at clocks, calendars, and thinking about what happens often or rarely.

Why do we need to learn probability?

Probability helps us understand the world around us. It helps us plan, make choices, and understand chance.