7th Grade

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Practial problems involving volume

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Opposites add to zero

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Distance as absolute value on a number line

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Why Is p + q Always |p| Units Away from q?

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Subtraction as adding the opposite

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Subtract Negative Number

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Comparing Populations

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Uniform Probability Models

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Compare Model to Data

How Do You Compare Your Model to Observed Frequencies?

This video shows you how to compare your model to observed data and use the differences to improve future predictions.

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Done

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Build a Probability Model

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Plane Sections of Pyramids

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Adding negatives with number line

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Subtracting negatives with number line

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Rules for adding and subtracting negative numbers

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Chip Model For Negative Numbers

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Adding negatives with chips

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Subtracting negatives with chips

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Distance between integers

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