# Lesson 1 Story Problems and Expressions

• Let’s make sense of and solve story problems.

## Warm-up Notice and Wonder: A Library

What do you notice? What do you wonder?

## Activity 1 The Library

1. Some kids were at the library.
Then some of the kids went home.
What do you notice?
What do you wonder?

2. There were 9 kids at the library.
Then 2 of the kids went home.
How many kids are at the library now?
Show your thinking using drawings, numbers, or words.

## Activity 2 Story Problems About the Library

1. 5 books were on a shelf.
Clare put 2 more books on the shelf.
How many books are on the shelf now?
Show your thinking using drawings, numbers, or words.

Expression:

2. 6 books were stacked up on the table.
4 of the books fell on the floor.
How many books are still on the table?
Show your thinking using drawings, numbers, or words.

Expression:

3. 6 kids were listening to a story.
4 more kids joined the group.
How many kids are listening to the story now?
Show your thinking using drawings, numbers, or words.

Expression:

4. There were 5 computers turned on.
The librarian turned 2 of the computers off.
How many computers are still on?
Show your thinking using drawings, numbers, or words.

Expression: