Finding a Needle in a Haystack?
This map shows the HUGE area in North America across which monarchs move on their way to the sanctuaries in Mexico. The area in red measures over 9 million square kilometers!
In contrast, the sanctuaries are a tiny speck on the planet. They are clustered into a tiny region that measures only 800 square kilometers. This means the Monarchs find an area that is 11,000 times smaller than the area the migration crosses. Finding a needle in a haystack almost sounds easy in comparison! The monarchs certainly seem to know where they're going, don't they?
Try This: Journaling Question
Calculate the area of a standard football field, then answer this question:
"Finding the Mexican sanctuaries in the North American continent is like finding a _____ on a football field. (Fill in the blank with something to scale. That is, name an object that's 11,000 times smaller than a football field.)"
Here are the dimensions of a football field:
in Spatial Terms
National Math Standards