Method
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Display the
pumpkin. Have students estimate the number of vertical lines on
the pumpkin, and record their estimations on chart paper.
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Count all
of the lines with the class and record this 'actual' amount.
Whose estimation was most accurate?
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Trace your
finger around the circumference of the pumpkin, and explain that
this is the circumference.
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Label the
pieces of paper with the titles "too short", "just right" and
"too long".
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Get
children to cut a piece of string based on their estimate of
what will be necessary to go around the pumpkin.
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Have each
child come up with their piece of string and let them try to
wrap it around the pumpkin.
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Place a
piece of tape on the end of their string, and let them tape it
to the appropriate paper- "too short"...
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Cut out the
top of the pumpkin and have students come up, look inside, and
estimate how many seeds are in it.
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Record
estimations.
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Gut
pumpkin, dry out seeds, and count them the next day with the
class. Whose estimate was the closest?
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