Financial Mathematics and Proportion · Number and Operations

Rates and Ratios

Solving problems involving direct proportion and comparing rates in different units.

Key Questions

  1. 1How can we determine if two quantities are in a direct proportion relationship?
  2. 2Why is it necessary to convert units before comparing two different rates?
  3. 3How do unit rates help us make better consumer decisions in a supermarket?

ACARA Content Descriptions

AC9M9N03
Year: Year 9
Subject: Mathematics
Unit: Financial Mathematics and Proportion
Period: Number and Operations

Suggested Methodologies

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