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      Lesson details

      Learning outcome

      I can plan a journey and consider which available form of transport is best.

      Key learning points

      1. Journey planners can aid when deciding how to travel to a location
      2. Journey planners have limitations
      3. It is important to consider the implications of each form of transport

      Keywords

      • Estimate - A quick estimate for a calculation is obtained from using approximate values, often rounded to 1 significant figure.

      Common misconception

      Pupils may add together costs that are expressed in different units (e.g. the cost of petrol in pence and the cost of a car park in pounds) without considering the implications on place value.

      Writing units on your answers to each stage of working can help you to double check whether numbers in subsequent calculations are expressed in the same units.

      Teacher tip

      The final question in each task asks pupils to plan a journey for themselves. They will require access to the internet to answer these questions.

      Licence

      This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      A quick __________ for a calculation is obtained from using approximate values, often rounded to 1 significant figure.

      equation
      Correct answer: estimation
      evaluation
      exact solution

      Q2.
      Adult bus tickets cost £3 each. Children bus tickets cost £1.50 each. Two adults and three children travel together by bus. What would be the total cost of their bus tickets?

      £4.50
      £7.50
      Correct answer: £10.50
      £15
      £21

      Q3.
      How many minutes are there between 9:48 am and 10:15 am?

      Correct Answer: 27, twenty seven, 27 minutes

      Q4.
      A car travels 70 miles per gallon of petrol. How many miles could it travel using 4.5 gallons of petrol?

      Correct Answer: 315, three hundred and fifteen, 315 miles

      Q5.
      Petrol costs 146.9 p per litre. Therefore 20 litres of petrol would cost £ .

      Correct Answer: 29.38, 29 pounds 38 pence, £29.38

      Q6.
      1 imperial gallon is approximately 4.546 litres. Starting with the smallest, sort the measurements in order of volume.

      1 - 2 gallons
      2 - 13 litres
      3 - 13.5 litres
      4 - 3 gallons
      5 - 14 litres

      6 Questions

      Q1.
      Jacob boards a bus at 13:51. He alights the bus at 14:28. How many minutes did he spend on the bus?

      Correct Answer: 37, 37 minutes, thirty seven

      Q2.
      A car travels 40 miles per gallon. Therefore, it consumes gallons per mile.

      Correct Answer: 0.025, zero point zero two five, 0.025 gallons

      Q3.
      1 gallon ≈ 4.546 litres. Use this approximation to convert 12 litres to gallons. Give your answer accurate to 3 significant figures.

      Correct Answer: 2.64 gallons, 2.64

      Q4.
      Petrol is sold for 142.9 p per litre. 1 gallon ≈ 4.546 litres. How much would 2.5 gallons of petrol cost? Give your answer in pence to the nearest penny.

      Correct Answer: 1624 p, 1624 pence, 1624

      Q5.
      A person drives 8.2 miles by car. On average, their car travels 50 miles per gallon of petrol. Which calculation would find the amount of petrol consumed during the journey, in gallons?

      $$1 \div 50 \div 8.2$$
      Correct answer: $$1 \div 50 \times 8.2$$
      $$1 \times 50 \div 8.2$$
      $$1 \times 50 \times 8.2$$

      Q6.
      Adult bus tickets cost £3.50 each way. Children bus tickets cost £1.80 each way. Two adults and three children all make a two-way journey by bus. The total cost of their bus tickets is £ .

      Correct Answer: 24.80, £24.80, twenty four pound eighty

      To help you plan your 9 maths lesson on: Considering a route, download all teaching resources for free and adapt to suit your pupils' needs...