Watch this video (right),
and describe the situation.
Write down the
first mathematical question
that comes to mind.
As a class, we will decide
on a central question to explore.
Make three smart guesses
to answer the central question:
a guess too low,
a guess too high,
and a guess in the middle.
Place your guesses on the number line.
WHILE WE'RE ON THE TOPIC...
What would have helped you achieve a more accurate estimate?
How might you avoid such a mistake in the future?
Explain your work to someone else? Did s/he do the work differently?
Can you explain the process using the other person's methods?