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What to createLesson plan
Which subjectMathematics
What topicFactors
What length (min)45
What age groupYear or Grade 3
Include homework
Include images descriptions
Any other preferences

Lesson Plan: Factors

Subject: Mathematics

Duration: 45 Minutes

Year Level: Grade 3

Topic: Factors

Learning Objectives

By the end of this lesson, students will be able to:

  1. Identify and define factors.
  2. Determine factors of a given whole number.
  3. Understand how to use arrays and repeated addition to illustrate factors.

Materials Required

Introduction (10 Minutes)

  1. Greeting and Overview: Start the lesson by welcoming the students and explaining that today they will learn about factors.

  2. Focus Question: Ask the students, "What do you think factors are?" Write their ideas on the whiteboard.

  3. Definition of Factors:

    • Explain that a factor is a number that can divide another number without leaving a remainder.
    • Introduce the concept with an example: "For instance, 1, 2, and 4 are factors of 8 because you can multiply 2 × 4 to get 8."

Direct Instruction (15 Minutes)

  1. Demonstration of Finding Factors:

    • Write down the number 12 on the whiteboard.
    • Discuss how to find all factors of 12 by looking for pairs of numbers that multiply to 12.
    • List the factors: 1, 2, 3, 4, 6, 12.
    • Use an array or counters to visually represent these factors.

  2. Reinforcement Through Repeated Addition:

    • Explain how 3 × 4 = 12 shows factors as groups (i.e., using 3 groups of 4 to make 12).

  3. Class Participation:

    • Invite students to suggest other numbers and find their factors collaboratively.

Guided Practice (10 Minutes)

  1. Worksheet Activity:

    • Hand out worksheets that contain different numbers for students to find factors.
    • Include numbers like 15, 18, and 20.
    • Circulate the room to provide support and encourage students to work together.

  2. Discussion:

    • After 5 minutes, reconvene and discuss the answers. Ask students how they arrived at their answers.

Independent Practice (5 Minutes)

  1. Factors Quiz:

    • Provide a short quiz with numbers where students can write down the factors.
    • Examples might include 10, 14, and 25.

  2. Encouragement:

    • Remind students to use what they learned during the lesson to find the factors and think about grouping.

Conclusion (5 Minutes)

  1. Recap of Learning:

    • Summarize what factors are and how they can be found using multiplication and arrays.

  2. Exit Ticket:

    • Ask each student to state one new thing they learned about factors on a piece of paper before they leave.

Assessment

Additional Notes