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Engage in a collaborative math activity using money and percent cards to understand price fluctuations. Learn decimal and percentage multipliers, fraction multiplication, and manipulation of prices through percentage changes.
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Money Cards (1) £100 £150 £200 £160
Collaborative activity 1 • Take turns to place a percent card between each pair of money cards. • Explain your thinking clearly and carefully if you disagree with the placement of a card, challenge your partner. 3. It is important that each group member understands the maths for each card placement.
Sharing work What have we learnt today? Suppose prices increase by 10%. • What is the decimal multiplier? • How can you write that as a fraction multiplication? • What is the fraction multiplication to get back to the original price? • How can you write that as a decimal multiplier? • How can you write that as a percent?
Sharing work What have we learnt today? Suppose prices increase by 30%. • What is the decimal multiplier? • How can you write that as a fraction multiplication? • What is the fraction multiplication to get back to the original price? • How can you write that as a decimal multiplier? • How can you write that as a percent?
Sharing work What have we learnt today? Suppose prices decrease by 35%. • What is the decimal multiplier? • How can you write that as a fraction multiplication? • What is the fraction multiplication to get back to the original price? • How can you write that as a decimal multiplier? • How can you write that as a percent?