Area of Parallelograms and Trapezoids

Day 3

Objectives:

  • To derive formulas for the area of a parallelogram and a trapezoid.
  • To apply area formulas to solve problems.

  • Warm Up Activity:

    Diamond Dazzler

    First count all the diamond shapes in this design.

    (20)

    Then count all the triangles.

    (17)

     


    Lesson Outline:


    Optional Activity :

    This is the third group which is made up of students who have already mastered today's objectives determined by the pre-test. This group will answer the question of what if you don't know the height of a parallelogram or trapezoid. They will also prepare an overhead for demonstration for the class.

    (for students who may have already mastered the objectives)

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