Shark Learning
Grade 5/Geometry

Perimeter on a Grid

Find the perimeter of shapes by counting grid units.
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Easy
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6 questions
2
6 questions
Medium
1
6 questions
2
6 questions
Hard
1
6 questions
2
6 questions

Practice Questions

  1. Perimeter = ? units
    Show answer

    10 units

  2. Perimeter = ? units
    Show answer

    12 units

Quick Tip
Count the side lengths of each square along the boundary.
Teacher Resources
Teaching Notes

This collection focuses on perimeter on a grid. Use grid paper to help students visualize area and perimeter.

Vocabulary
Perimeter: Distance around a shape.
Side length: How long one edge is.
Common Mistakes
  • Confusing Area and Perimeter formulas
  • Forgetting to double the sides for Perimeter
  • Using wrong units (e.g., cm instead of sq cm for Area)
  • Counting squares inside the shape.
  • Missing a side or edge segment.
  • Miscounting grid lines/intersections.
  • Confusing perimeter with area.
Differentiation
SupportHave students trace shapes on grid paper and count squares.
ChallengeChallenge students to find multiple rectangles with the same area but different perimeters.
Discussion Questions
  • What is the difference between Area and Perimeter?
  • Can two rectangles have the same perimeter but different areas?
  • Why do we use 'square' units for area?
  • What does 'perimeter' mean?
  • How do we measure perimeter on a grid?
  • How is perimeter different from area?
  • Why is careful counting important for perimeter?
Extension Activities
  • Measure the classroom floor area.
  • Design a garden with a specific perimeter.
  • Create art using only rectangles of specific areas.
Parent Tip

Walk around your house and count steps for perimeter.

Learning Path
Skill Cluster

Measurement & Geometry

Estimated Time

20 minutes

Skills Practiced
Perimeter on a grid