Airport Gates maths mission

Quick answer

You can use airport gates to practice time intervals by planning travel times, waiting periods, and scheduling activities, all while learning how to calculate time differences between events.

Learning outcome

By the end of this page, you will be able to calculate time intervals between events, like when a plane arrives and when you need to be at the gate, or how long you have to wait between flights.

• You can tell the time on a clock and know how many minutes or hours pass between two times.
• You can work out how long you need to wait for a flight or how early to get to the airport.
• You can plan your travel time using time intervals in real life, like at an airport.
• You can solve simple time problems using subtraction and addition of time.

Why this matters

Time intervals are important in real life, especially when you travel. Whether you're waiting for a flight, planning a trip, or making sure you don’t miss a train, knowing how to work out time differences helps you be on time and avoid stress. At airports, you need to know how much time you have between flights, how long your journey takes, and how early to arrive. This is a practical skill that helps you be a confident traveller!

How it works

Time intervals are the amount of time between two events. To find a time interval, you need to:

1. Look at the start time and the end time.
2. Count forwards or backwards from the start time to the end time.
3. Use a clock or a number line to help you add or subtract time.
4. Make sure you know how many minutes or hours pass between the two times.

Examples you can see

Imagine you are at the airport:

• Your flight is at 10:30 am and you need to be at the gate 45 minutes before the flight.
• What time should you be at the gate?
• Start at 10:30 am and count backwards 45 minutes.
• 10:30 am minus 45 minutes = 9:45 am.

Another example:

• Flight A arrives at 2:15 pm.
• Flight B departs at 3:00 pm.
• How long do you have to wait between flights?
• Start at 2:15 pm and count forward to 3:00 pm.
• From 2:15 to 3:00 is 45 minutes.

You can also use a number line or a clock to help:

Try it as a mini adventure

Adventure: The Airport Gate Mission

You are a travel agent helping a family plan a trip to London. They are flying from Manchester to London, and they have two flights they need to catch:

1. Flight A departs Manchester at 9:15 am and arrives in London at 10:45 am.
2. Flight B departs London at 11:30 am and arrives in Paris at 1:15 pm.

Your mission is to help the family know how long they have to wait between flights and how much time they spend flying.

Step 1: How long does Flight A take?

Start: 9:15 am, End: 10:45 am

Count forward: 9:15 to 10:15 = 1 hour, then 10:15 to 10:45 = 30 minutes

Flight A takes 1 hour 30 minutes.

Step 2: How long do they wait at the gate?

Flight A arrives at 10:45 am, Flight B departs at 11:30 am.

Count forward: 10:45 to 11:00 = 15 minutes, then 11:00 to 11:30 = 30 minutes

They wait 45 minutes at the gate.

Step 3: How long does Flight B take?

Start: 11:30 am, End: 1:15 pm

Count forward: 11:30 to 12:00 = 30 minutes, then 12:00 to 1:00 = 1 hour, then 1:00 to 1:15 = 15 minutes

Flight B takes 1 hour 45 minutes.

Common mistakes

• Mistake: Thinking that 10:45 am to 11:30 am is 45 minutes.
• Why it happens: Children often forget that 10:45 to 11:00 is 15 minutes, not 45 minutes.
• Fix: Use a clock or a number line to count the minutes carefully.

• Mistake: Adding time incorrectly by mixing up hours and minutes.
• Why it happens: Children may add 45 minutes to 10:30 and get 10:75, which is not correct.
• Fix: Remember that 60 minutes = 1 hour. So 10:30 + 45 minutes = 11:15.

• Mistake: Not knowing how to subtract time when the minutes are smaller.
• Why it happens: When subtracting 10:30 - 9:45, children might subtract 30 - 45 and get a negative number.
• Fix: Borrow 1 hour from the hour and add 60 minutes to the minutes, then subtract.

Parent and carer guide

Help your child by:

1. Using a real clock or a digital timer to show time intervals.
2. Practising with everyday situations like “How long will it take to walk to the bus stop?”
3. Letting your child draw a number line or use a clock to solve problems.
4. Encouraging them to explain their thinking, not just give the answer.
5. Not worrying if they make a mistake — it's part of learning!

At home, you can make it fun by creating a mini airport with toy planes and a clock, or by planning a pretend trip together. Time intervals are a skill that builds confidence in maths and real-life planning.

Practice questions

1. Flight A departs at 8:20 am and arrives at 9:50 am. How long does the flight take?
2. Flight B departs at 1:15 pm and arrives at 3:30 pm. How long does the flight take?
3. Flight C arrives at 4:10 pm and Flight D departs at 5:00 pm. How long do you wait between flights?
4. Flight E departs at 10:05 am and arrives at 11:45 am. How long does the flight take?
5. Flight F arrives at 6:20 pm and Flight G departs at 7:00 pm. How long do you wait between flights?

Answers:

1. 1 hour 30 minutes
2. 2 hours 15 minutes
3. 50 minutes
4. 1 hour 40 minutes
5. 40 minutes

FAQ

How do I teach time intervals to a 4-year-old?

Use a simple clock and play games like “How much time passes between now and snack time?” Start with whole hours and gradually add minutes.

How can I make time intervals fun for a 10-year-old?

Use real-world examples like planning a trip, watching a movie, or calculating how long it takes to ride a bike to school. You can even make a game out of it using a timer or a stopwatch.

Why do children find time intervals difficult?

Children often get confused when they need to borrow time or when they are adding or subtracting minutes that go over 60. It helps to use visual tools like clocks or number lines.

What are some real-life uses of time intervals?

Time intervals are used in many places: school timetables, sports events, cooking, travel, and even games. Knowing how to calculate time helps you be better at planning and managing your day.

Can I use this airport example for other maths concepts?

Yes! You can use the same airport example to teach addition, subtraction, time, and even data handling by creating a chart of flight times and waiting periods.