# Lesson 4 Does the Number Change?

Let’s figure out how many objects there are when the objects are moved around.

## Warm-up Notice and Wonder: Lots of Dots

What do you notice?

What do you wonder?

## Activity 1 Counting Collections

How many objects are in your collection?

## Activity 2 Count, Rearrange, Recount

## Activity 3 Introduce Tower Build, Count and Build to 20

Choose a center.

Tower Build

Find the Pair

Number Race

Subtraction Towers

5-frames