How Many Monarchs in a Single Photo?
Arriving in Mexico, November 5, 2005
We didn't want to even try to count all of the butterflies! We
used part of the photo to make our estimate.
we divided the photo into
equal squares by using a grid.
we counted the number of squares. (How many do you count?)
took a close-up view of one square. We chose the square in the upper
left corner. (The red arrow is pointing to the square.)
Take a look. >>