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Tuesday, February 19, 2008

Constructing Pie/Circle Graphs 7.11A

Yesterday my classes all took a survey of their favorite classes. Each student chose only one subject as their favorite. The end result was the class as a whole constructing their own pie chart, breaking down the totals, turning them into fractions, decimals, percents, and finally degrees, so the pie could be cut into parts according to the angles. Quite a few TEKS were covered and the students were all engaged. I plan on continuing surveys throughout the year so I can spiral this lesson.

Below is an example of tracking from one of my blogs. The information gathered was about returning visitors. From this information you can easily calculate the degrees of each angle for the percent and number of each category is already given.

Returning Visits
drill down84First Time Visits
drill down321-5 Returning Visits
drill down105-10 Returning Visits
drill down1410+ Returning Visits

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