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

2 boys. books on the table. One boy gives the other boy a backpack.

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

  1. 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?

  2. 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

Center. Sort and Display.

Check it Off

Center. Check It Off.

What’s Behind My Back

Center. 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.