Lesson Plan

Perimeter of Common Geometric Figures

Curated and Reviewed by Lesson Planet

Help learners understand that perimeter and circumference are one in the same. Learners apply their skills to determine the perimeter/circumference of triangles, rectangles, and circles. They then use the same strategy to find the perimeter of a trapezoid. 

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Use the sixth, seventh, and eighth practice problems to challenge pupils that are ready
  • Supplement with coordinate geometry to incorporate distance formula or Pythagorean Theorem
Classroom Considerations
  • Some learners may not be familiar with pi; place more emphasis on pi if this is the case
  • Continues from the previous lesson in an 16-part series
Pros
  • Develops formulas from familiar patterns, aiding in pupils' understanding of the concept
  • Scaffolds problems to advance to more difficult questions
Cons
  • Does not include application questions or context within examples
Common Core