- Why do you think this?
- How can we find out and be sure that we are correct?
First we represented our theories and justifications in our math journals:
Some of our theories revealed comparisons to other men in the school, so we sat down as a class to make a list of all the men in the school. As we made this list some of us began to change our minds about who we thought the tallest man was, so we collected our opinions again using unit cubes to represent them:
- Measure the men and put them on our class height chart
- Line the men up and see who is tallest
Then we measured them on our height chart. And as we had originally predicted, it turned out that Mr. Pinchbeck was the tallest man in the school! But this time we knew for sure because:
We went to our math journals for a final time to represent our conclusions and also discussed them as a class: