aidemia--modules-lessonplan_request	Titles of parts of the lesson must be formatted as headings
What to create	Lesson plan
Which subject	Mathematics
What topic	Use the commutative property to find larger totals.
What length (min)	30
What age group	Year or Grade 1
Include homework
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Lesson Plan: Using the Commutative Property to Find Larger Totals

Grade Level

1st Grade

Duration

30 Minutes

Objective

Students will understand and apply the commutative property of addition to find larger totals in mathematical problems.

Materials Needed

• Whiteboard and markers
• Number cards (1-10)
• Worksheets with addition problems
• Counters or small objects for hands-on practice

Standards

This lesson aligns with the Common Core State Standards for Mathematics:

• CCSS.MATH.CONTENT.1.OA.B.3: Apply properties of operations as strategies to add and subtract.

Introduction (5 minutes)

Begin the lesson by introducing the commutative property. Explain that the commutative property of addition shows us that we can add numbers in any order and still get the same total. Use the following examples on the board:

• 2 + 3 = 5
• 3 + 2 = 5

Explain that both equations equal the same total (5) even though the numbers are in a different order.

Direct Instruction (10 minutes)

1. Demonstration: Use number cards to show different combinations of numbers.

   • Display cards for 4 and 5. Ask the students what they think happens if they change the order:
     • 4 + 5
     • 5 + 4
   • Write both equations on the board and illustrate that they both equal 9.

2. Interactive Practice:

   • Call on students to come up and rearrange cards on the board to form different addition sentences.
   • Encourage them to say both sentences aloud.
   • Example: If a student pairs 1 and 6, they will create:
     • 1 + 6
     • 6 + 1
   • Ask the class to confirm the totals.

Guided Practice (5 minutes)

Distribute worksheets with a variety of addition problems that utilize the commutative property.

• Problems might include:
  1. 2 + 3 and 3 + 2
  2. 4 + 1 and 1 + 4
  3. 5 + 5 and 5 + 5 (to show they are the same)

Walk around the classroom, offering help as needed, and providing encouragement to use their voices to express the commutative property.

Independent Practice (5 minutes)

Have students work on their own using counters or small objects. They will create two different addition sentences with the same numbers and find their totals. For example:

• Students can use 3 counters and 2 counters to find:
  • 3 + 2
  • 2 + 3
• Students record their findings on their worksheets.

Conclusion (5 minutes)

Wrap up the lesson by discussing what the students learned today. Ask them:

• What did you notice about adding numbers in different orders?
• Can we always add in any order? Why?

Emphasize that addition is flexible and they can reorganize numbers for easier math.

Homework Assignment

Task: Complete the following addition problems using the commutative property. Write two addition sentences for each pair of numbers and find the total.

1. 3 and 4

   • + = __
   • + = __

2. 5 and 2

   • + = __
   • + = __

3. 1 and 6

   • + = __
   • + = __

Correct Answers

1. • 3 + 4 = 7
   • 4 + 3 = 7
2. • 5 + 2 = 7
   • 2 + 5 = 7
3. • 1 + 6 = 7
   • 6 + 1 = 7

By practicing at home, students will reinforce their understanding of the commutative property of addition.