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Ratio & proportion — Module 5: Percentages & financial maths
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What you'll learn
- Percentages & financial maths AQA GCSE 8300 §3.3 / R9, R16
- Ratio, Proportion & Rates of Change
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 5: Percentages & financial maths
This parent guide relates the page examples with a structured study routine. The present resource is labelled Mathematics, GCSE, Year 10, Year 11, E-Learning Module. Use that framework, the learning summary and published prompts to agree what secure work should demonstrate.
Prepare a focused session
Read the title and learning focus together. Ask the learner to identify the knowledge, language or technique they may need. Scan each sample and identify action words, quantities, signals, limits or unfamiliar terms. Agree a manageable time window, remove interruptions and collect appropriate equipment such as paper, pencil, ruler, coloured pens, calculator, headphones or a device. Encourage an independent opening attempt so the work shows secure understanding and uncertainty. A quiet pause often aids retrieval better than an instant answer.
Make thinking shown
Invite the learner to restate the task in their own words. They can underline essential information, divide a complex problem into shorter steps, design a representation, sort evidence, practise a sentence or describe a planned method. Ask why their method fits and whether another method could work. When movement stops, provide a graduated hint: state again the goal, point towards a related example, narrow the choice, then demonstrate only the next step. Return ownership immediately afterwards. Spoken reasoning highlights mistakes and practises correct subject language.
Check accuracy and understanding
Compare the attempt with shown answer guidance after sustained effort. Inspect more than the final work: review the method, explanation, units, evidence, sequence, spelling or presentation where related. Ask the learner to find the opening point where their reasoning changed path. Complete corrections actively in a different colour or separate space, followed by a concise note of the correction. For a correct answer, seek justification and one independent check. This distinguishes secure knowledge from guessing while strengthening accuracy, reflection and careful working habits.
Consolidate and extend
Finish with retrieval from memory. Cover the example and ask for the main idea, process or fact again. Create one small alternative by altering a value, condition, example, viewpoint or level of support while keeping the learning focus. Invite the learner to write a similar question and supply checking guidance. Record one success and one clear next step, perhaps revisiting terminology, practising a calculation, adding evidence or improving clarity. Recheck that target afterwards in the week because spaced review gives stronger information than instant 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.
Find the simple interest on £500 at 4% per year for 3 years.
- £20
- £40
- £60
- £80
Sample answer: £60
Explanation: Yearly interest = £20; over 3 years = £60.
£1000 is invested at 10% compound interest for 2 years. What is it worth?
- £1100
- £1200
- £1210
- £1240
Sample answer: £1210
Explanation: × 1.1 twice: 1000 × 1.1 × 1.1 = £1210.
A car worth £8000 depreciates by 10% each year. What is it worth after 2 years?
- £6400
- £6480
- £6500
- £7200
Sample answer: £6480
Explanation: × 0.9 twice: 8000 × 0.9 × 0.9 = £6480.
Add 20% VAT to £80. What is the total?
- £88
- £96
- £100
- £160
Sample answer: £96
Explanation: £80 × 1.20 = £96.
A £40 jacket is reduced by 15%. What is the sale price?
- £25
- £32
- £34
- £36
Sample answer: £34
Explanation: £40 × 0.85 = £34.