aidemia--modules-lessonplan_request	Titles of parts of the lesson must be formatted as headings
What to create	Lesson plan
Which subject	Science
What topic	LESSON 15 Use the commutative property to count on from the larger addend.
What length (min)	30
What age group	Year or Grade 1
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Lesson Plan: Use the Commutative Property to Count On from the Larger Addend

Grade Level

1st Grade

Subject

Science (with a focus on Math Concepts)

Duration

30 Minutes

Objective

Students will understand the commutative property of addition, allowing them to efficiently count on from the larger addend when solving addition problems.

Materials Needed

• Whiteboard and markers
• Counting blocks or counters
• Addition flashcards
• Worksheets for practice and homework

Introduction (5 minutes)

• Begin the lesson with a brief explanation of the commutative property of addition.
• Explain that the commutative property tells us that the order of addends does not change the sum. For example, (3 + 4) is the same as (4 + 3).
• Use a visual demonstration on the whiteboard to show both equations, highlighting that they equal the same sum.

Direct Instruction (10 minutes)

1. Demonstrate Counting On:

   • Show a simple addition problem on the board, such as (7 + 2).
   • Ask students to identify the larger addend (7) and explain that we will count on from this number.
   • Count together: “7, 8, 9” to reach the answer of 9.

2. Practice Commutative Property:

   • Present the equation (4 + 5) and let students find the sum by counting on from the larger number (5).
   • Engage the class and ask how the commutative property applies here: (5 + 4) gives the same result.

3. Hands-On Activity:

   • Divide students into small groups and provide them with counting blocks.
   • Give each group several addition problems to solve using counting on from the larger addend. For example: (6 + 3), (2 + 5), etc.

Guided Practice (5 minutes)

• Write a few more addition problems on the board.
• Have students come up one at a time to solve these problems by counting on from the larger addend.
• Encourage peers to help and discuss their thought process.

Independent Practice (5 minutes)

• Distribute worksheets with various addition problems.
• Let students work on these independently, using the commutative property and counting on from the larger addend.

Closing (5 minutes)

• Gather the class and review what they learned about the commutative property.
• Ask students to share one addition problem they enjoyed and discuss the strategies they used.
• Reinforce the concept by emphasizing that knowing this property makes math easier and faster.

Homework

Tasks

1. Solve the following addition problems by counting on from the larger addend:

   • (8 + 3 = ?)
   • (4 + 6 = ?)
   • (5 + 2 = ?)
   • (9 + 1 = ?)

2. Write one sentence explaining the commutative property.

Correct Answers

1. (8 + 3 = 11)
2. (4 + 6 = 10)
3. (5 + 2 = 7)
4. (9 + 1 = 10)

Example Sentence:

"The commutative property says that it doesn't matter the order I add the numbers; I will get the same answer."

Assessment

• Monitor student participation during guided practice and group activities.
• Review students' worksheets to evaluate understanding of the commutative property and counting on.
• Check homework for correctness and comprehension of concepts covered in the lesson.

End of Lesson Plan