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Maths Adventures

Volcano maths quest: time

A story-led junior maths adventure using lava paths, safety zones and eruption data to read clocks, plan routes and beat countdowns.

Quick answer

You can use time to plan safe paths through a volcano, know when eruptions will happen, and keep track of how long you have to escape.

Learning outcome

By the end of this page, you will be able to read the time on both digital and analogue clocks, understand how long different events take, and use time to plan safe routes through a volcano. Success signs:
  • You can tell the time to the hour and half-hour on an analogue clock
  • You can read digital times like 3:15 and 4:30
  • You can work out how long something takes using a clock
  • You can plan a safe route using time clues

Why this matters

Time is super important when you're exploring a volcano! If you don't know the time, you might miss your chance to escape before a big eruption. When you're planning your lava path, you need to know how long it takes to walk from one safety zone to another. Time helps you know when to start your journey, when to stop, and when to be ready for danger. This is not just for volcanoes – knowing time helps you with your school day, your playtime, and even when you're cooking or watching your favourite TV show.

How it works

Time is shown on clocks in two main ways:
  1. Analogue clocks have hour and minute hands that move around a circle
  2. Digital clocks show numbers like 3:15 or 8:45
Let's start with the basics:
  1. On an analogue clock, the short hand shows the hour (like 3 for 3 o'clock)
  2. The long hand shows the minutes (like 12 for 0 minutes)
  3. Each number on the clock represents 5 minutes
  4. So when the long hand points to 3, it's 15 minutes past the hour

Examples you can see

Let's imagine you're on a Volcano Maths Quest! You have to reach the safety zone before the next eruption. The eruption timer says 10:30. You are at the start at 10:15. How long do you have? Step-by-step:
  1. You start at 10:15
  2. The eruption is at 10:30
  3. Count the minutes: 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
  4. You have 15 minutes to get to safety
Another example: You're on a lava path that takes 25 minutes to complete. If you start at 9:00, when will you finish?
  1. Start time: 9:00
  2. Path takes 25 minutes
  3. 9:00 + 25 minutes = 9:25
  4. You finish at 9:25
Real-world example: Imagine you're helping your parent cook dinner. The recipe says to bake a cake for 45 minutes. If you start at 5:20, when will the cake be ready?
  1. Start time: 5:20
  2. Bake time: 45 minutes
  3. 5:20 + 45 minutes = 6:05
  4. The cake will be ready at 6:05

Try it as a mini adventure

Volcano Escape Challenge You are on a volcano adventure! Your mission is to reach the safety zone before the next eruption. Here's your plan:
  • Start time: 11:10
  • First safety zone is 15 minutes away
  • Second safety zone is 10 minutes after that
  • Eruption is at 12:00
Step-by-step challenge:
  1. Start at 11:10
  2. Walk to first safety zone: 11:10 + 15 minutes = ?
  3. Walk to second safety zone: ? + 10 minutes = ?
  4. Check if you're safe before eruption at 12:00
Answer:
  1. Start at 11:10
  2. First zone: 11:10 + 15 minutes = 11:25
  3. Second zone: 11:25 + 10 minutes = 11:35
  4. You reach safety at 11:35, before eruption at 12:00

Common mistakes

  • Mistake: Thinking 15 minutes after 11:45 is 11:60
    Why it happens: Confusing minutes with hours
    Fix: Remember that 60 minutes = 1 hour, so 11:45 + 15 minutes = 12:00
  • Mistake: Reading 3:45 as "three forty-five" instead of "fifteen to four"
    Why it happens: Not understanding that 45 minutes is 15 minutes before the next hour
    Fix: Practice saying times in different ways: "quarter to four" or "15 minutes before 4"
  • Mistake: Adding time incorrectly when crossing midnight
    Why it happens: Not understanding that 12:00 is the start of a new day
    Fix: Use a 24-hour clock or write "am" and "pm" clearly

Parent and carer guide

Parents and carers can help by:
  • Practicing telling time with your child using both digital and analogue clocks
  • Playing time games like "What time is it?" during daily routines
  • Using real clocks or watch faces to show how time moves
  • Creating simple time challenges like "You have 10 minutes to clean your room"
  • Looking at a clock together and asking "How long until dinner?" or "What time will it be in 30 minutes?"
  • Using a timer for activities to help your child understand duration
  • Noticing time in everyday life – "We need to leave in 15 minutes" or "The bus comes at 3:30"
  • Encouraging your child to explain how they know the time

Practice questions

  1. What time is it if the hour hand is on 4 and the minute hand is on 12?
  2. If it's 2:30 now, what time will it be in 15 minutes?
  3. You start a hike at 10:15 and it takes 20 minutes. What time do you finish?
  4. How long is it from 9:00 to 9:45?
  5. If a movie starts at 3:15 and lasts 1 hour and 30 minutes, what time does it end?
Answers:
  1. 4:00
  2. 2:45
  3. 10:35
  4. 45 minutes
  5. 4:45

FAQ

What does "quarter past" mean?

Quarter past means 15 minutes after the hour. So quarter past 3 is 3:15.

How do I know which way the minute hand moves?

The minute hand moves clockwise (like the hands of a clock) and each number on the clock represents 5 minutes.

Why is time important for volcanoes?

Time helps you know when eruptions happen, how long your journey takes, and when to start escaping to safety.

How can I practice telling time at home?

You can practice by checking the time during daily activities, using a timer for tasks, or playing games like "What time is it?" with family members.

What if I get confused with am and pm?

Am means "before noon" (like morning) and pm means "after noon" (like afternoon or evening). You can use a 24-hour clock or write am/pm to help remember.