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Worksheet

Area and Perimeter of Irregular Shapes

Curated and Reviewed by Lesson Planet
This Area and Perimeter of Irregular Shapes worksheet also includes:

Evaluate young mathematicians' understanding of area and perimeter with this series of three assessment tasks. Challenging students to not only calculate the area and perimeter of irregular shapes, but to explain in writing their solutions, these exercises would make a great addition to the resource library of any upper-elementary teacher.

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CCSS: Adaptable
Concepts
area, perimeter of polygons, area of polygons, geometric figures, geometric shapes, irregular shapes, irregular polygons, square units, perimeter, rectangles, squares, perimeter of rectangles, area of squares, area of rectangles, compound shapes, estimation, estimation length
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Additional Tags
math
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Instructional Ideas
  • Supplement these assessments into upper-elementary geometry unit on area and perimeter
  • These exercises could also be used as in-class or homework assignments
  • Working in small groups, have students analyze the included samples of student work, identifying and explaining any mistakes that were made
Pros
  • Assessments include real-world area and perimeter problems for students to solve
  • Numerous samples of student work are included that demonstrate common misconceptions children may have when learning about area and perimeter
  • Rubrics are provided for grading the assessment tasks
  • Problems are printed on grid paper to support students with calculating area and perimeter
Cons
  • None