Identifying Part-to-Part and Part-to-Total Ratios

This lesson introduces the concept of ratios, explaining how they compare two or more related quantities. It covers different types of ratios, such as part to part and part to total, and emphasizes the importance of context in understanding them. Through a scenario involving students' shirt color preferences, the lesson demonstrates how to identify and interpret various ratios using diagrams and language cues.

What is a ratio and how can it be expressed?

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In the scenario where seven students prefer blue shirts and one prefers a white shirt, identify the parts and the total.

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How many total students were polled in the scenario?

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Explain the difference between part to part and part to total ratios using the example provided.

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What language indicators help identify the type of ratio being discussed?

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What is the part to part ratio of students who like blue shirts to those who like white shirts?

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Describe the part to total ratio for students who prefer white shirts.

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