Which is more?

How do you know?

How did you see it?

K, 1, 2

Seeing mathematics in the world

Connecting quantity and number

Comparing quantities

Equal means the same

Composing and decomposing number

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:

How could you make these two groups equal?

How do you know?