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2. Algebra

Comparing phone contracts and utility bills

Pupils use algebra to work out the best-value phone contracts and utility bills.

Scenario

Pupils are researching the best-value phone contracts and utility bills. Pupils will substitute price information into formulae to calculate the total cost of phone contracts and devise their own formulae for calculating utility costs.

Curriculum References

National Curriculum 2  Substitute numerical values into formulae and expressions, including scientific formulae.
OCR 6.02b Substitute positive numbers into simple expressions and formulae to find the value of the subject. Substitute positive or negative numbers into more complex formulae, including powers, roots and algebraic fractions.
OCR 6.02a Formulate simple formulae and expressions from real-world contexts. e.g. Cost of car hire at £50 per day plus 10p per mile.
AQA A2 Substitute numerical values into formulae and expressions, including scientific formulae.
Edexcel A2 Substitute numerical values Using algebra to understand tariffs and bills such as phone contracts, taximeters, energy bills. Worksheet: Question practice Situation: [Multiple] Upgrading your phone or selecting an energy provider. Task: Select which tariff (eg phone contract/ energy provider) offers the best value. into formulae and expressions, including scientific formulae.
Learning resources

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