Every month we measure Herbie.

We measure him in inches.

We weigh him in pounds.

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After we weigh and measure Herbie,

We can show that data on a graph.

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When we work with graphing and charts we need to collect data.

Here are some sites to help us understand data collection.

• BBC Data handling and Mean, Median, and Mode
• Probability How to Collect and Interpret Data
• Excellent activity on interpreting data.
• Lesson on graphing points on a numberline.

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Working with different types of graphs