LESSON PLAN

Title:
Common Factors and Multiples

Learning Objectives:
  • To recognize situations in which finding multiples of whole numbers will be helpful in answering questions.
  • To use properties of multiples to explain some numerical facts about everyday life.
  • To observe and reason using patterns of multiples.
  • To recognize the significance of the greatest common factor and lowest common multiple.

    The Essential Academic Learning Requirements met
    1.1 - The student will understand and apply concepts and procedures from number sense.
    2.3 - The student will construct solutions.
    3.1 - The student will analyze information.
    3.3 - The student will draw conclusions and verify results.
    4.2 - The student will organize and interpret information.
    4.3 - The student will represent and share information.
    5.1 - The student will relate concepts and procedures within mathematics.
    5.3 - The student will relate mathematical concepts and procedures to real-life situations.

    Preparation:
    Problem of the Day on overhead, Riding Ferris Wheel Worksheets

    Activities:
    Problem of the Day (5 min)
  • Find five common multiples of 20 and 30.
  • What is the greatest possible? What is the smallest possible?
  • Find some common factors of 12 and 30.
  • What is the greatest possible? What is the smallest possible?
  • Stamp homework: Cross-Number Puzzle

    Discuss POD (10 min)
  • Is there a greatest common multiple? Is there a smallest?
  • We usually find it most useful to talk about the least common multiple
  • Is there a greatest common factor?
  • Is there a smallest/least common factor? What is always the least common factor?
  • We usually find it most useful to talk about the greatest common factor.

    Ferris Wheels (15 min)
  • Set up the story about little sister not being tall enough to ride the big ferris wheel.
  • Who has ever gone to an amusement park with rides before?
  • Have you ever noticed that there are little kid rides and big kid rides?
  • Explain situation with example numbers
  • What does one “revolution” mean?

    Assign Ferris Wheel Worksheet and ACE 1-4 (p. 40).

    Have students work (rest of period)

    Entry Slip #3
    Portfolio Index