# Lesson 3 A Change is Coming

Let’s solve story problems and find the answer in equations.

## Warm-up Notice and Wonder: Kiran’s Books

What do you notice?

What do you wonder?

Kiran has some books.

His friend gives him some more books.

## Activity 1 Kiran’s Books

Kiran has 6 books.

His friend gives him some more books.

Now he has 8 books.

How many books did Kiran get from his friend?

Show your thinking using drawings, numbers, or words.

## Activity 2 Lin Represents a Story Problem

## Problem 1

Andre checked out some books from the library.

Mai gives him more books.

Now he has 9 books.

What do you notice?

What do you wonder?

## Problem 2

Andre checked out 3 books from the library.

Mai gives him some more books.

Now he has 9 books.

How many books did Mai give him?Lin made this drawing.

She wrote the equation

Is her equation correct?

Show your thinking using drawings, number, or words.

## Activity 3 Centers: Choice Time

Choose a center.

Sort and Display

Check it Off

What’s Behind My Back

## Practice Problem

## Problem 1

There were 7 kids playing in the swimming pool.

Then some more kids came to play with them.

Now there are 10 kids playing in the swimming pool.

How many kids came to play?

Show your thinking using drawings, numbers, or words.