I can use proportionality as a comparison rather than just absolute values.
I can use proportionality as a comparison rather than just absolute values.
Proportionality - Variables are in proportion if they have a constant multiplicative relationship.
Pupils only see the amount, not proportion. e.g £30 from £100 is no different to £30 from £60.
Referring to the whole using bar models or fractions can emphasise the amount with respect to the whole.
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$$\frac{7}{10}$$ were correct - In test A, Laura gest 14 out of 20 correct
$$\frac{1}{2}$$ were correct - In Test B, Sofia gets 35 out of 70 correct.
$$\frac{4}{5}$$ were correct - In Test C, Jacob go 4 out of 5 correct.
$$\frac{13}{25}$$ were correct - In Test D, Lucas got 104 out of 200 correct.
A receives more than B - A receives 10% of £80 and B receives 50% of £14
B receives more than A - A receives 35% of £90 and B receives 30% of £120
A receives the same as B - A receives 15% of £400 and B receives 80% of £75
Not enough information - A receives 85% and B receives 90%
