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What to createLesson plan
Which subjectScience
What topicLESSON 15 Use the commutative property to count on from the larger addend.
What length (min)30
What age groupYear or Grade 1
Include homework
Include images descriptions
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Lesson Plan: Use the Commutative Property to Count On from the Larger Addend

Subject: Science
Grade: 1
Duration: 30 Minutes
Topic: Lesson 15 - Use the Commutative Property to Count On from the Larger Addend

Objective

Students will learn to use the commutative property of addition to enhance their counting skills by starting from the larger addend. By the end of the lesson, students should be able to explain how to use this property to solve addition problems more effectively.

Materials Needed

Introduction (5 minutes)

  1. Greeting and Warm-up
    Begin the lesson by greeting the students. Engage them in a brief discussion about addition. Ask questions such as:

    • "What is addition?"
    • "Can anyone give me an example of adding two numbers?"

  2. Introduce the Commutative Property
    Explain the concept of the commutative property of addition in simple terms:

    • "The commutative property tells us that when we add two numbers, we can add them in any order, and we will get the same answer."
    • Provide a simple example on the whiteboard:
      • ( 3 + 2 = 5 )
      • ( 2 + 3 = 5 )

Direct Instruction (10 minutes)

  1. Demonstration

    • Use manipulatives to demonstrate counting on from the larger addend.
    • Example: For the equation ( 2 + 5 )
      • Start with the larger number, which is 5.
      • Count on, starting from 5:
        [5, 6, 7]
        • "So, ( 2 + 5 = 7 )."

  2. Practice with Class

    • Present additional examples on the whiteboard:
      • ( 4 + 3 )
      • ( 6 + 2 )
    • Ask students to count out loud from the larger number each time they solve the problem.

Guided Practice (10 minutes)

  1. Group Activity

    • Divide students into small groups.
    • Give them counting manipulatives and several addition problems to solve using the commutative property.
      • Example Problems:
        • ( 7 + 1 )
        • ( 5 + 4 )
        • ( 3 + 8 )
      • Encourage each group to discuss the steps and start from the larger addend.

  2. Circulate and Support

    • Walk around the classroom to assist and provide feedback as groups work on their problems.

Independent Practice (5 minutes)

  1. Worksheet
    • Distribute a worksheet that contains various addition problems where students can practice the commutative property.
    • Ensure problems have a mixture of larger and smaller addends.

Conclusion (5 minutes)

  1. Review and Recap

    • Gather the class and ask some students to share their answers from the worksheet.
    • Reinforce how the commutative property helps make addition easier and faster.
    • Highlight the importance of starting from the larger addend in addition.

  2. Introduce Homework

    • Explain the homework task.

Homework

Tasks:

  1. Solve the following addition problems using the commutative property. Show your work by starting from the larger addend:
    • ( 4 + 9 )
    • ( 7 + 3 )
    • ( 5 + 6 )
    • ( 2 + 8 )

Answers:

  1. ( 4 + 9 = 13 ) (Start from 9: 9, 10, 11, 12, 13)
  2. ( 7 + 3 = 10 ) (Start from 7: 7, 8, 9, 10)
  3. ( 5 + 6 = 11 ) (Start from 6: 6, 7, 8, 9, 10, 11)
  4. ( 2 + 8 = 10 ) (Start from 8: 8, 9, 10)

This lesson plan is designed to meet the needs of first-grade students by providing interactive and engaging methods to understand the commutative property and improve their addition skills.