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OAT Lesson 1: Add or Subtract to Solve Story Problems

Last updated over 2 years ago
10 questions
Develop Understanding
Today's Learning Goal: (G2, U2, L3)
  • Describe their methods using place value understanding.
  • Solve story problems involving addition and subtraction within 100 without composing or decomposing a ten.
Today's Materials:
  • Laptop
  • Laptop charger
  • Pen/Pencil/Paper/Expo Marker (optional)
Please complete the Jump Start (activator). You have 5 minutes before we review. This is independent it should be silent.
Reminders:
1. Ready for class
2. No cellphones
3. Volume must be low.
4. Read and follow all directions
5.) Take your bag off and immediately begin the Activator.

Jump Start: How Many Do You See: Base-ten Diagram - (5 minutes)

Required
1

How many do you see? How do you see them?


Launch: Adding and Subtracting Word Problems - (10 min)


I do (Question 2)

We Do (Question 3)

You Do (Question 4)

Required
0

There are 34 children in Mai’s classroom. There are 21 children in Noah’s classroom. How many more children are in Mai’s classroom than in Noah’s classroom? Show your thinking using drawings, numbers, or words and write an equation.

Required
0

Jason had 6 white socks. He had some blue socks. He had 14 socks altogether. How many blue socks did he have?Show your thinking using drawings, numbers, or words and write an equation.

Required
0

Wendy picked 47 cherries Monday. She picked 39 cherries Tuesday. She needs 130 cherries for the cherry pie. How many more cherries does she need to pick?

Activity 1: Fun at the Zoo - (10 min)

Required
0

Some students were waiting on the bus to go to the zoo. Then 34 more students got on. Now there are 55 students on the bus. How many students were on the bus at first?

Activity 2: More Fun at the Zoo - (15 min)

Required
0

Solve each story problem. Show your thinking.


There were 65 students in the monkey house. 23 left to see the hippos. How many are still in the monkey house?

Required
0

58 students went to see the bears. 27 students went to see the lions. How many more students went to see the bears than the lions?

Required
0

Some birds were in cages outside of the bird house. 34 birds were inside the bird house. In all, there were 88 birds. How many were in the cages outside?

Lesson Synthesis: Representations - (5 min)

Angel picked 7 apples Friday. He picked 9 apples. He needs 20 apples for the apple crumble. How many more apples does he need to pick?
Required
0

Name 2 different ways we can represent this problem. Then solve the problem.

Cool Down: Time to Leave - (5 min)

Required
4

89 students were at the zoo. 41 students left the zoo on the first bus. How many students are at the zoo now?
Show your thinking. (Use a visual model if it helps.)

Closure Questions:

  • How do you feel about today's material?
  • What are some ways we can represent word problems?