Maths Standard Year 11 - Module 3 - Lesson 9

GST, Budgeting and Household Expenses

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

Calculate GST on goods and services, construct and analyse a personal budget, and compare household expenses including utilities and council rates.

Key facts and terms for GST, Budgeting and Household Expenses
How the main ideas in GST, Budgeting and Household Expenses connect

2. Success Criteria

By the end, you should be able to:

Key facts and terms for GST, Budgeting and Household Expenses
Where this lesson fits in Module 3
How the main ideas in GST, Budgeting and Household Expenses connect

3. Key Terms

GSTGoods and Services Tax — a 10% tax on most goods and services in Australia.

BudgetA plan that balances income against expenses over a set period.

Fixed ExpenseCosts that stay the same each period (rent, loan repayments, insurance).

Variable ExpenseCosts that change from period to period (groceries, utilities, petrol).

Discretionary SpendingNon-essential spending on wants rather than needs (entertainment, dining out).

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 GST, Budgeting and Household Expenses". 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 GST, Budgeting and Household Expenses: "How the main ideas in GST, Budgeting and Household Expenses connect".

Band 54 marks

6. Extend: Apply the Idea

Band 5/65 marks

A student gives a memorised answer about GST, Budgeting and Household Expenses 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 GST, Budgeting and Household Expenses?

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 GST, Budgeting and Household Expenses?

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 GST, Budgeting and Household Expenses