# Lesson 3 Count Carefully

Let’s see if we get the same number as our partner when we count the same group of objects.

## Warm-up Notice and Wonder: Pile of Connecting Cubes

What do you notice?

What do you wonder?

## Activity 1 Counting Collections

How many objects are in your collection?

## Activity 2 Count Carefully with Friends

Clare, Andre, and Noah all counted these cubes.

Clare says there are 15 cubes.

Andre says there are 16 cubes.

Noah says there are 17 cubes.

Can they all be right?

## Activity 3 Introduce Find the Pair, Make 5

Choose a center.

Find the Pair

Number Race

Subtraction Towers

5-frames