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Proportional Reasoning
Proportion: comparing quantities
Proportions are everywhere in maths, science, commerce and many other areas of life. For example you need to reason with proportions to operate successfully in:
- fractions, decimals and percentages
- scale drawings and maps
- probability
- drawing timelines
- interpreting and comparing rates such as speed, density and unit price.
What do you know about proportions?
Try these questions:
Between 2003 and 2006 two trees, Tree A and Tree B, grew 3 metres. Which tree grew the most as a proportion of its original height?
Between 2003 and 2006 two trees, Tree A and Tree B, grew 3 metres. Which tree grew the most as a proportion of its original height?
| 2003 | 2006 | |
| Tree A | 2 metres | 5 metres |
| Tree B | 3 metres | 6 metres |
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