Applying Tax, Tip, and Discount: Using Proportions and Scale Factors

This lesson teaches how to apply taxes, tips, and discounts using proportions and scale factors. It explains the concept of proportions, provides a real-life example of calculating a discount on sneakers, and uses bar models to verify calculations. Common misunderstandings are addressed, emphasizing the importance of distinguishing between discounts and final sale prices. The lesson concludes with a summary of the key concepts.

What is the relationship between a percent and a ratio in the context of discounts?

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What common misunderstanding do students have regarding discounts and final sale prices?

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How can keeping a receipt help in avoiding mistakes when calculating discounts?

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