Perimeter and Area of Polygonal Regions in the Cartesian Plane

How many sides does that polygon have? Building directly from lesson number eight in this series, learners now find the area and perimeter of any polygon on the coordinate plane. They decompose the polygons into triangles and use Green's Theorem to find the area. They use the distance formulas to determine the perimeter. There are 15 lessons in this series.

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CCSS: Designed
Instructional Ideas

  • Use a graphing organizer to record all important information including vocabulary, theorems, and formulas
  • Have pupils cut out the polygons they would like to find the area of and decompose the figure with their scissors
Classroom Considerations

  • Provide learners with graph paper to use throughout the lesson
  • There are 15 lessons in the series
Pros

  • Challenges learners on their use of formulas and computation skills
  • Provides all necessary resources and keys for a quality lesson
Cons

  • None
Common Core