Lesson 14 Expressions and Story Problems

    • Let’s figure out how expressions go with the story problems.

Warm-up Choral Count: Count On

Now start at the number 3 and count to 10.

Activity 1 Expression for a Story Problem

People in a park. Riding bikes. Sitting on a bench.

There were 10 people riding bikes in the park.
Then 6 of the people stopped riding to have lunch.
How many people are riding bikes now?

Activity 2 Which Expression?

Hopscotch court.
  1. There were 2 rocks in Lin’s jar.
    At the park, Lin put 4 more rocks into her jar.
    How many rocks are in Lin’s jar now?

  2. There were 8 kids playing hopscotch.
    3 of the kids left to go jump rope.
    How many kids are playing hopscotch now?

Activity 3 Centers: Choice Time

Choose a center.

Number Race

Center. Number Race.

Math Stories

Center. Math Stories.

Practice Problem

Problem 1

There are 5 red apples in the bowl.
Lin puts 3 green apples in the bowl.

  1. How many apples are in the bowl?

  2. Circle the expression that matches the story problem.