About how many do you see?

How do you know?

What did you notice that helped you estimate?

What made estimating hard?

3, 4, 5, 6+

Seeing mathematics in the world

Decomposing and using benchmarks to estimate

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

What are all the different estimates that the students in your class came up with?

What do these different estimates tell you about how many buffalo there probably are in this image?

Why?