Proportional Reasoning and Multiplicative Relationships · Number and Proportion

Ratio and Scale

Exploring the relationship between parts and wholes using ratio notation and scale factors.

Key Questions

  1. 1How does a change in scale factor affect the relationship between two quantities?
  2. 2Why is a ratio different from a fraction even though they both represent parts of a whole?
  3. 3When is it more effective to use a unitary method versus a cross multiplication method?

National Curriculum Attainment Targets

KS3: Mathematics - Ratio, Proportion and Rates of Change
Year: Year 8
Subject: Mathematics
Unit: Proportional Reasoning and Multiplicative Relationships
Period: Number and Proportion

Suggested Methodologies

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