As a class, we will decide on a central question to work on.
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?