Maths Standard Year 11 - Module 3 - Lesson 12

Compound Interest

Use this worksheet after reading the lesson to practise the key ideas and prove you can meet the success criteria.

Name

Date

Class

1. Key Ideas

Use the compound interest formula to calculate future value, understand the effect of compounding frequency, and compare compound with simple interest.

Key facts and terms for Compound Interest
How the main ideas in Compound Interest connect

2. Success Criteria

By the end, you should be able to:

Key facts and terms for Compound Interest
Where this lesson fits in Module 3
How the main ideas in Compound Interest connect

3. Key Terms

Compound InterestInterest calculated on the principal plus accumulated interest: A = P(1 + r)^n.

PrincipalThe initial amount of money invested or borrowed.

Rate per PeriodThe interest rate for each compounding period (annual rate divided by periods per year).

Number of PeriodsThe total number of compounding periods (years × periods per year).

Final BalanceThe total value of the investment or loan after all interest has been applied.

4. Activity: Build the Lesson Map

Use the lesson to complete the table. Keep answers brief but specific.

Prompt	Your answer
Main concept
Important example
Common mistake to avoid
How this links to the next lesson

5. Short Answer Questions

1. Explain this lesson goal in your own words: "Key facts and terms for Compound Interest". Use one specific example from the lesson.

Band 32 marks

2. Apply this idea to a new example: "Where this lesson fits in Module 3". Show your reasoning clearly.

Band 43 marks

3. Analyse why this idea matters for understanding Compound Interest: "How the main ideas in Compound Interest connect".

Band 54 marks

6. Extend: Apply the Idea

Band 5/65 marks

A student gives a memorised answer about Compound Interest but does not use evidence or reasoning.

Improve the answer by writing a stronger response that uses accurate terminology, a relevant example and a clear explanation.

7. Multiple Choice

1. What is the best first step when answering a question about Compound Interest?

A. Identify the key concept being tested

B. Write every fact from memory

C. Ignore the command word

D. Skip examples and evidence

2. Which answer would show stronger understanding of Compound Interest?

A. An answer with accurate terms and reasoning

B. A copied definition only

C. A single-word response

D. An answer with no example

3. What should you do if a question asks you to explain?

A. Link the idea to a reason or cause

B. List unrelated facts

C. Only draw a diagram

D. Write the shortest possible answer

8. Success Criteria Proof

Finish with evidence that you can do each success criterion.

Success criterion 1

Prove that you can: Key facts and terms for Compound Interest