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K–12 teaching and learning · from the UNC School of Education

Finding products

http://illuminations.nctm.org/LessonDetail.aspx?ID=L528

A lesson plan for grades 3–4 Mathematics

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Students continue to examine the role of commutativity and the multiplicative identity, play a multiplication game, and explore products where one of the factors is 6. Using resources provided by Illuminations, students practice their multiplication tables and eventually work up to their 6 tables.

Students will:

  • Find products where one factor is 6.
  • Use the commutative property.
  • Explore the results of multiplying by 1 and by 0.
  • Practice the multiplication facts with factors of 6.

NCTM Standards and Expectations covered in this lesson include:

  • Understanding the effects of multiplying and dividing whole numbers.
  • Developing fluency with basic number combinations for multiplication and division and use these combinations to mentally compute related problems, such as 3050.
  • Selecting appropriate methods and tools for computing with whole numbers from among mental computation, estimation, calculators, and paper and pencil according to the context and nature of the computation and use the selected method or tools.

North Carolina Curriculum Alignment

Mathematics (2004)

Grade 3

  • Goal 1: Number and Operations - The learner will model, identify, and compute with whole numbers through 9,999.
    • Objective 1.03: Develop fluency with multiplication from 1x1 to 12x12 and division up to two-digit by one-digit numbers using:
      • Strategies for multiplying and dividing numbers.
      • Estimation of products and quotients in appropriate situations.
      • Relationships between operations.
    • Objective 1.04: Use basic properties (identity, commutative, associative, order of operations) for addition, subtraction, multiplication, and division.

Grade 4

  • Goal 1: Number and Operations - The learner will read, write, model, and compute with non-negative rational numbers.
    • Objective 1.02: Develop fluency with multiplication and division:
      • Two-digit by two-digit multiplication (larger numbers with calculator).
      • Up to three-digit by two-digit division (larger numbers with calculator).
      • Strategies for multiplying and dividing numbers.
      • Estimation of products and quotients in appropriate situations.
      • Relationships between operations.