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Prerequisites

N2b – Multiplying positive integers
N2c – Dividing with positive integers
R4a – Using ratio notation, and reducing ratios to simplest form
G14a – Converting between metric units of measures of length and mass
G14b – Converting between metric units of measures of area and volume
G14c – Money
G14d – Time

Applying ratio to real contexts such as mixing and conversions

This lesson consists of exam-style questions focussing on expressing and interpreting ratios in the context of unit conversions and in the context of mixing problems. The skills required are covered in lessons noted under Prerequisites above.

Teacher resources

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Slides in PPTX (with click-to-reveal answers)
Slides in PDF (one slide per page, suitable for importing into IWB software)

Worksheet (with space for student work)
Handout (slides with exercises only; 4 per page for reduced printing)
- Worked solutions to all questions

Links to past exam questions

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What next?

Ratio assorted problems – requiring knowledge of R3a, R4a, R5a, and R5b
R6a – Expressing a multiplicative relationship between two quantities as a ratio or a fraction