About how many do you see?

How do you see them?

What do you notice that could help you estimate?

4, 5, 6+

Seeing mathematics in the world

Decomposing and using benchmarks to estimate

Sorting, organizing, and using attributes

After the class has discussed the questions above, you can extend this activity by posing the following questions:

What makes estimating hard in this image?

What strategies did you use to deal with those challenges?