Make compound interest engaging and accessible with this complete GCSE Maths & Functional Skills teaching pack. This resource bundle includes a worksheet, a step-by-step teaching PowerPoint, and a high-engagement Escape the Room codebreaker, giving you everything needed to teach compound interest increase and decrease from modelling to mastery.
Compound Interest Worksheet – Increase & Decrease
•The worksheet provides 10 exam-style questions requiring students to:
•calculate total amounts after 1–3 years at various interest rates,
•compare different investment choices,
•work out compound credit card charges,
•calculate depreciation on cars,
•handle interest applied semi-annually.
•Includes a clear answer key showing full results for every question—ideal for self-checking or marking.
•(Questions such as £1000 at 6%, £20,000 at 3%, £150,000 at 2%, car depreciation at 6%, and semi-annual interest problems appear on page 1.)
Teaching PowerPoint – Step-by-Step Method
The PowerPoint introduces compound interest with clear worked examples, covering:
•the difference between simple and compound interest,
•interest on savings vs credit,
•year-by-year calculation methods,
•semi-annual interest,
•comparison tasks (e.g., Bank A vs Bank B).
•Visual breakdowns and guided examples support learners who need structured explanations and repeated practice.
Perfect for whole-class teaching or recap lessons.
•(Example: Jack’s £500 investment at 7% shown working year-by-year, and Paula’s 3% every 6 months vs 4.15% annually.)
Escape the Room Activity – Compound Interest Puzzle
A fun plenary or revision activity: pupils solve four compound interest questions to generate a four-digit escape code.
Problems include:
•house price increases at 2%,
•car depreciation at 7%,
•investment at 1.5%,
•time required to exceed a target amount at 2.5%.
Learners must calculate accurately to crack the code and “escape”.
Great for small groups, pair work or Friday challenge sessions.
Code instructions and worked solutions are provided.
✔ Why Teachers Love This Pack
• Clear, scaffolded teaching material
• Realistic examples that build confidence
• Worksheets match GCSE exam expectations
• Escape Room activity boosts engagement and motivation
• Suitable for GCSE Foundation, Functional Skills L1–L2, resits, revision & intervention
• Fully resourced—just print and teach
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