Graph Model
by
Tim McMahon
Introduction
To interpret graphical information in a logical manner proves to be important when dealing with daily life situations. This week will prove to help avoid getting "ripped-off" or being misguided through skewed graphical representations.
The Task
By the end of the week you will know:
- How to read and interpret Bar Graphs.
- How to read and interpret Circle Graphs.
- How to read and interpret Line Graphs.
Resources
The main resources you will use for this task is the information you
received from Mawson Weather Station, Mawson information, your math skills, if you would like to see an example of the graphs click here for bar or here for line, and applicable worksheets. Protractors to teach the circle graphs if necessary. For more information on graphs click here.
The Process
To accomplish this task you will need to complete the following:
- Split students into groups of four.
- To each group, give a real world example of a bar graph, line graph, and a circle graph.
Make sure students are familiar with the properties of a circle (ie, 360 degrees).
- Allow the students to work as a group to answer the questions related to the graphs.
Learning Advice
When finding the number of degrees that correspond to each percent on the circle graphs note that the sum may not be 360 degrees because of rounding. Bar and line graphs are the comparison of two sets of numbers and all bar graphs should have a graph title, a verticle-axis label, and a horizontal-axis label.
Evaluation
They will be graded on the accuracy of the graphs. They will also
be graded on their group participation.
Conclusion
By the end of this week the students should be able to recreate circle, line and bar graphs if given the appropriate data.
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