Monarch Migration Update: Sept. 9, 2010 | ||||||||||
Excitement filled the air this week. Cool temperatures arrived and people saw waves of monarchs leaving for Mexico. "Monarchs are flying in from the east, over our garage, and heading out of sight toward the west," exclaimed one woman in Michigan. "We counted 150 in 45 minutes!" How many monarchs can you count in an hour? Find out how to compare the pace of migration in different places by using standard units of measurement. This Week's Update Includes:
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Image of the Week | |||||||||
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Look at the migration map and you can plainly see, the monarchs are moving toward their winter home in Mexico:
As the monarchs picked up their pace, people were delighted by the show. Observers reported "thousands of monarchs," "a constant stream," "hundreds per hour," and "a sore neck from watching more than I've seen in a decade!" Monarchs were counted from the driver's seat of a school bus and from the longest porch in the world, at the Grand Hotel on Lake Michigan. How to Count Migrating Monarchs
Notice how the following observers also measured the pace of migration by counting monarchs per minute:
Who saw a stronger migration? Use this week's journal page to convert monarch observations to standard units and you'll see! |
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The Migration: Maps and Journal Page | ||||||||||
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Lesson: Fun With Migration Rate Activities | ||||||||||
The four activities below help you practice with the standard units we use for migration data. See these Teaching Suggestions to introduce students to the concept of migration rates.
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The
Next Monarch Migration Update Will Be Posted on September 16, 2010. |
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