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# National Curriculum: Ratio and Proportion - Year 6

Created on 15 October 2013 by ncetm_administrator
Updated on 18 December 2013 by ncetm_administrator

# National Curriculum: Ratio and Proportion - Year 6

• solve problems involving the relative sizes of two quantities where missing values can be found by using integer multiplication and division facts
• solve problems involving the calculation of percentages [for example, of measures, and such as 15% of 360] and use percentages for comparison
• solve problems involving similar shapes where the scale factor is known or can be found
• solve problems involving unequal sharing and grouping using knowledge of fractions and multiples

## Non-Statutory Guidance

Pupils recognise proportionality in contexts when the relations between quantities are in the same ratio (e.g. similar shapes, recipes).

Pupils link percentages or 360° to calculating angles of pie charts.

Pupils should consolidate their understanding of ratio when comparing quantities, sizes and scale drawings by solving a variety of problems. They might use the notation a:b to record their work.

Pupils solve problems involving unequal quantities e.g. ’for every egg you need three spoonfuls of flour’, ‘⅗ of the class are boys’. These problems are the foundation for later formal approaches to ratio and proportion.

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