Estimating on Graphs

This lesson teaches how to read graphs by estimating between gridlines. It emphasizes the importance of understanding units and scale to avoid common mistakes. The method involves visually dividing spaces into equal parts for accurate estimation. Practical examples include estimating values on bar and line graphs, calculating slopes, and analyzing speed during a bike ride. The lesson highlights that while estimations are not exact, they provide reasonable approximations for interpreting graph data.

What does a horizontal line in a graph indicate about movement?

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How do you estimate the speed before and after lunch based on the graph?

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What should you keep in mind about the slopes calculated from estimations?

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