Section A: Practice Problems Count Groups of 11–20 Objects

Section Summary


In this section, we counted groups of up to 20 objects.

We kept track of the objects that we counted.

We used a 10-frame or a counting mat to help us.

We realized that the number of objects stayed the same even when we rearranged them.

Problem 1 (Exploration)

​​​How many shapes do you see on the soccer ball?

Soccer ball.

Problem 2 (Exploration)

How many soccer players are there in the picture?
How did you count them?

Soccer game on soccer field.