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Ratio & proportion — Module 6: Scale, maps & unit conversion
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What you'll learn
- Number
- Scale, maps & unit conversion AQA GCSE 8300 §3.3 / R2, R12
Inside this resource
- 4 slides
For the student — how to do this
For parents and carers
For teachers and tutors
How to check the work
Ask the learner to show or explain one idea, then try a fresh example with suitable support. Note any prompts needed; retelling alone does not show secure understanding.
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How to study with Ratio & proportion — Module 6: Scale, maps & unit conversion
This parent guide relates the page examples with a usable study routine. The listed resource is labelled Mathematics, GCSE, Year 10, Year 11, E-Learning Module. Use that setting, the learning summary and published prompts to clarify what firm work should demonstrate.
Prepare a focused session
Read the title and learning focus jointly. Ask the learner to spot the understanding, language or technique they may need. Scan each sample and spot command words, quantities, clues, conditions or less familiar terms. Agree a focused time window, clear diversions and collect useful materials such as paper, pencil, ruler, coloured pens, calculator, headphones or a device. Encourage an unaided first attempt so the work shows firm understanding and gaps. A reflective pause often aids retrieval better than an same-session answer.
Make thinking published
Invite the learner to summarise the task in their own words. They can underline necessary information, break a larger problem into individual steps, create a diagram, sort details, compose a sentence or describe a planned method. Ask why their approach fits and whether another plan could work. When progress stops, offer a staged hint: state again the goal, point towards a related example, reduce the choice, then show only the next step. Return ownership immediately afterwards. Spoken reasoning highlights misconceptions and practises correct subject language.
Check accuracy and understanding
Compare the attempt with published answer guidance after honest effort. Inspect more than the final work: review the method, explanation, units, details, sequence, spelling or presentation where related. Ask the learner to locate the first point where their reasoning changed path. Complete corrections actively in a different colour or fresh space, followed by a short note of the correction. For a correct answer, request reasoning and one unaided check. This differentiates assured understanding from guessing while developing accuracy, reflection and careful working habits.
Consolidate and extend
Finish with retrieval from memory. Cover the example and ask for the core idea, process or fact again. Create one small adaptation by changing a value, condition, example, viewpoint or level of support while keeping the learning focus. Invite the learner to write a comparable question and supply checking guidance. Record one success and one precise next step, perhaps revisiting terminology, practising a calculation, adding details or developing clarity. Recheck that target later in the week because spaced review gives better information than same-session repetition.
The interactive player, downloadable file and capture answer material retain their existing access controls. The guide aids preparation, discussion and review.
Sample questions and answers
Try five questions from this exact activity. Review each authored answer and explanation, then note which ideas need another look. Compare the options and explain why the answer fits. Say the reasoning aloud or write a short justification before opening the interactive player to complete the activity and save progress.
A map has scale 1 : 100 000. How many km in real life is 2 cm on the map?
- 1 km
- 2 km
- 20 km
- 200 km
Sample answer: 2 km
Explanation: 2 cm × 100 000 = 200 000 cm = 2 km.
A map has scale 1 : 50 000. How far in real life is 4 cm on the map?
- 1 km
- 2 km
- 4 km
- 20 km
Sample answer: 2 km
Explanation: 4 cm × 50 000 = 200 000 cm = 2 km.
A model car has scale 1 : 20. The real car is 4 m long. How long is the model?
- 10 cm
- 20 cm
- 40 cm
- 80 cm
Sample answer: 20 cm
Explanation: 4 m ÷ 20 = 0.2 m = 20 cm.
Convert 3 km to metres.
- 300 m
- 3000 m
- 30 000 m
- 30 m
Sample answer: 3000 m
Explanation: 1 km = 1000 m, so 3 km = 3000 m.
Convert 5000 g to kilograms.
- 0.5 kg
- 5 kg
- 50 kg
- 500 kg
Sample answer: 5 kg
Explanation: 1 kg = 1000 g, so 5000 g = 5 kg.