Back to Pie Charts

Teaching Suggestions
and Discussion Questions

Teaching Suggestions
Have students imagine themselves as scientists. Challenge them to write a report to summarize what the data on the pie charts show. After discussion, have them design a conservation plan based on what they know about the importance of 12 sanctuaries. Ask:

  • Why is the information in these pie charts important to scientists who are working to protect monarch habitat?
  • Why is it important to have more than one year of information about the number of monarchs in each sanctuary?
  • What mistakes might scientists make if they had information from only one winter?
  • Which sanctuary do you think is the most important to protect?
  • Which sanctuaries are the three most important?

Discussion Questions
Help students discover which of these questions they can answer by looking at these charts:

  • Are the monarch butterflies spread evenly among all of the 12 sanctuaries?
  • Do the monarchs seem to prefer some sanctuaries over others? Are they the same sanctuaries each year?
  • Which three sanctuaries did most monarchs select this year (2009) and last year (2008)?
  • Which sanctuary changed the most in use between last year and this year?
  • Why do you suppose monarchs select one colony over another? What factors might be involved?
  • Do monarchs seem to prefer certain sanctuaries every year? If so, which ones?
  • Which do monarchs seem to prefer the least?
  • What might happen next year? Predict how the chart will look--and plan to come back to see!

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