I can manipulate percentages of an amount with a representation.
I can manipulate percentages of an amount with a representation.
Proportion - Variables are in proportion if they have a constant multiplicative relationship.
Equivalent fractions - Two fractions are equivalent if they have the same value.
When finding 10% we divide by 10, so when finding 5% we divide by 5.
Use a bar model to show the division of 10 means one tenth of the amount. When dividing by 5 it means one fifth has been found.
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15% of 700 - 105
25% of 600 - 150
20% of 800 - 160
90% of 140 - 126
35% of 900 - 315
1% of 6000 - 60
Bar model - Good visual representation. Bars can be split in any way needed.
Double number line - Good visual representation with scaled lines.
Ratio table - Concise without visual representation and quick to construct.
