How many?

How do you know?

How do you see it?

K, 1, 2, 3

Attending to and using structure

Connecting quantity and number

Composing and decomposing number

Making 5 and 10

Thinking in equal groups

Connecting area and multiplicative thinking

Sorting, organizing, and using attributes

Using units to count, measure, and compare

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

How could you make a different array using the same coins?

For grades 2 and up you can try the following as well:

Could you make an array that uses different coins, but has the same total value?