How many tiles are missing?

How do you see them?

How do you know?

3, 4, 5, 6+

Seeing mathematics in the world

Attending to and using structure

Composing and decomposing number

Thinking in equal groups

Connecting area and multiplicative thinking

Composing and decomposing with shapes

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

About what portion of the tiles are missing?

How do you know?