# Checking and securing understanding of real world ratios

I can apply my knowledge of ratios to real world contexts.

# Checking and securing understanding of real world ratios

I can apply my knowledge of ratios to real world contexts.

## Lesson details

### Key learning points

- Bar models, ratio tables and double number lines can help with ratios.
- Real-life scaling involves writing a ratio involving the parts which are dependent on each other.
- A recipe is an example as to scale the recipe up or down requires keeping the proportions of the ingredients the same.

### Common misconception

Not converting the units correctly in a question or forgetting to have the same units before simplifying a ratio

help pupils to set out ratio tables where they include the units and work through step by step to convert correctly before simplifying. The ratio table can help organise this working.

### Keywords

Proportion - A part to whole (sometimes part to part) comparison. If two things are proportional then the ratio of part to whole is maintained and the multiplicative relationship between parts is also maintained.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Video

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